Extract from the 1870 Census:
Name: Wallace Newark
Age in 1870: 8
Estimated birth year: 1862
Birthplace: Canada W
Race: white
Sex: male
Relation to head-of-house: son
Home in 1870: Roxand, Eaton, Michigan
Post office: Sunfield
Occupation: none
Census place: Roxand, Eaton, Michigan; Roll: M593_670; Page: 283; Image: 566
Date: 23 Aug 1870

Extract from the 1880 Census:
Name: Wallace Newark
Age: 18
Estimated birth year: 1862
Birthplace: Canada
Race: white
Sex: male
Relationship to head-of-household: son
Home in 1880: Roxand, Eaton, Michigan
Marital status: single
Father's birthplace: England
Mother's birthplace: Canada
Occupation: farm laborer and attending school
Siblings living at home: Edgar (age 16) and Lester (12)
Census place: Roxand, Eaton, Michigan; Roll: T9_577; Family History Film: 1254577; Page: 61.1000; Enumeration District: 62; Image: 0613
Date: 21 Jun 1880

Extract from the 1900 Census:
Name: Wallace Newark
Age at last birthday: 38
Date of birth: Sep 1861
Birthplace: Canada English
Race: white
Sex: male
Relationship to head-of-house: head
Home in 1900: Charlotte Ward 1, Eaton, Michigan
Address: 223 Washington Avenue
Marital status: married
Number of years of marriage: 0
Able to read, write and speak English: yes
Father's birthplace: England
Mother's birthplace: Canada English
Year of immigration: 1865
Number of years in the United States: 35
Naturalization: yes
Farm or home: home
Home owned or rented: owned
Mortgage: yes
Occupation: doctor
Months not employed: 0
Census place: Charlotte Ward 1, Eaton, Michigan; Roll: T623 709; Page: 1B; Enumeration District: 64
Date: 1 Jun 1900

Extract from the 1910 Census:
Name: Wallace E Newark
Age in 1910: 49
Estimated birth year: 1861
Birthplace: Canada English
Race: white
Sex: male
Relation to head of house: head
Home in 1910: Charlotte Ward 4, Eaton, Michigan
Address: 121 East Simmons Street
Marital status: married (fourth marriage)
Number of years of present marriage: 7
Able to speak English: yes
Able to read and write: yes
Father's birthplace: England
Mother's birthplace: Canada English
Year of immigration: 1864
Whether naturalized or alien: naturalized
Farm or house: house
Home owned or rented: owned; has mortgage
Occupation: physician
Type of industry: sanatorium
Salary or wage worker: employer
Census place: Charlotte Ward 4, Eaton, Michigan; Roll: T624_645; Page: 7A; Enumeration District: 82; Image: 224
Date: 20 Apr 1910

Extract from the 1920 Census:
Name: Wallace Newark
Age: 58
Estimated birth year: 1862
Birthplace: Ontario Canada
Race: white
Sex: male
Relationship to head of house: head
Home in 1920: Charlotte, Eaton, Michigan
Address: 119 South Main
Marital status: married
Able to speak English: yes
Able to read and write: yes
Father's birthplace: England
Father's native tongue: English
Mother's birthplace: Ontario Canada
Mother's native tongue: English
Year of immigration: 1865
Naturalized or alien: naturalized in 1866
Home owned or rented: owned; no mortgage
Occupation: physician
Type of industry: medical
Salary or wage worker: not listed
Census place: Charlotte Ward 4, Eaton, Michigan; Roll: T625_763; Page: 5B; Enumeration District: 95; Image: 198
Date: 7 Jan 1920

Wallace E. Newark was born in Brockville, Ontario, Canada September 11, 1861. Wallace died May 7, 1923 at 61 years of age. His body was interred in Maple Hill Cemetery, Charlotte Michigan. He married four times. He married Daisy Kellogg Buck. Daisy was born 1867. He married Grace Fuller September 3, 1895. Grace was born June 1876. Grace died May 13, 1899 at 22 years of age. Her body was interred in Maple Hill Cemetery, Charlotte, Michigan. Grace's occupation: nurse. He married Irene Emily Dilks February 1900. Irene was born in New Jersey January 1871. Irene died October 1, 1902 at 31 years of age. Her body was interred in Maple Hill Cemetery, Charlotte, Michigan. Irene's occupation: nurse. He married Ida Berg. Ida was born 1872. Ida died 1950 at 78 years of age. Her body was interred in Maple Hill Cemetery, Charlotte, Michigan. Ida's occupation: nurse. Wallace's occupation: medical doctor. Wallace immigrated, circa 1865. Dr. Newark had a sanitarium or hospital in Charlotte, Michigan. The Michigan Medical History, Vol. 2, under the heading "Medical societies in existence in Michigan in 1894" lists W. E. Newark of Charlotte as president of the Medical Association of Barry and Eaton Counties, organized 1882 with 35 members.

Extract from "Past & Present of Eaton County, Michigan" (1906) pp. 456-457:
Wallace E. Newark, MD is a prominent and successful representative of the medical profession in Eaton County, controlling a large and important practice and conducting a finely equipped private sanitarium and training school for nurses in his home city of Charlotte. Dr. Newark was born in the province of Ontario, Canada, September 11, 1861, and is a son of James and Adeline (Ludbrook) Newark, the former of whom was born in England and the latter in the Dominion of Canada. They removed from Ontario to the state of Michigan in 1865, taking up their residence in Roxand Township, Eaton County, where the father purchased a tract of heavily timbered land, which he reclaimed from the wilderness and developed into one of the valuable farms of this opulent section of the Wolverine state. He and his wife still reside on the old homestead, secure in the esteem and good will of all who know them and numbered among the sterling pioneer citizens of the county. They have three children: Edgar, Lester and Wallace E.
Dr. Newark was reared to maturity in Eaton County, early beginning to aid in the work of the home farm and attending the district school until he was fifteen years of age, after which he attended the public schools of Grand Ledge and Charlotte, this county, and then took a normal course in Olivet College. He was then matriculated in the Detroit College of medicine, where he passed one year, after which he entered the Toledo College of Medicine, in Toledo, Ohio, from which institution he was graduated as a member of the class of 1888, receiving the degree of Doctor of Medicine. He has further fortified himself for the successful work of his profession by taking post-graduate courses in the medical department of the University of Michigan and in the Illinois College of Electro-Therapeutics, in the city of Chicago. He has also done special post-graduate work in connection with the disease and treatment of the ear, nose and throat, having done much and very successful work in the treatment of the disorders of these organs. The doctor began the practice of his profession by locating in Nashville, Barry County, Michigan, where he remained a short time, after which he was in practice at Brookfield, Eaton County, until 1894, when he located in Charlotte and opened an office.
His success has been most pronounced in his chosen field of labor, and he holds prestige as one of the leading members of his profession in this part of the state. In 1900, in order to meet well defined demands, Dr. Newark decided to open a private sanitarium, in order that his patients might have the proper attention at all times, receiving proper food and being afforded the advantage of modern appliances of a mechanical and remedial nature. He accordingly fitted up his present sanitarium, which is modeled after the celebrated Battle Creek sanitarium, and this institution is now incorporated under the laws of the state as a sanitarium and training school for nurses. His wisdom in opening this institution has been fully demonstrated in the patronage accorded, and he has been compelled to make additions and improvements from year to year in order to provide for the increasing business.
In 1905 he established in connection with the sanitarium a swimming pool and gymnasium, both of which are open to the general public, tickets being sold singly or by the month or year. The electrical and other appliances of the sanitarium are of the best modern type. In 1906 a two-story and basement substantial and commodious building was completed as an addition to the institution. On the staff of the sanitarium are: Dr. Graves, of Grand Rapids, and Haughey, of Battle Creek, the latter doing all the major surgical operations.
Dr. Newark is a member of the American Medical Association, the Michigan State Medical Society and the Eaton County Medical Society, and is held in high esteem by his professional confreres. He is identified with the Knights of Pythias, Knights of the Maccabees, Woodmen of the World and Mystic Workers, New Era and Brotherhood of America. His political allegiance is given to the Republican Party. On February 25, 1899, Dr. Newark was married to Irene E. Dilks, a native of New Jersey, and a graduate of the Battle Creek sanitarium. She died October 1, 1901. In 1902 Dr. Newark married Amelia Berg, a native of Duluth, Minnesota, who is also a graduate of Battle Creek sanitarium.

Obituary from the "Lansing State Journal" of Lansing, Michigan dated 5 May 1923:
Charlotte Doctor
Dies at Residence
- - - - - - - - -
Dr. W. E. Newark Owned
Sanitarium and Hospital;
Leaves Widow, 3 Sons
- - - - - - - - -
Charlotte, May 5 - Dr. W. E. Newark, 61, owner of the Newark sanitarium and hospital here and long prominent in Eaton medical circles, died this morning after about year of ill health.
Dr. Newark is survived by the widow and three sons, Grayson. a senior in Olivet college; Elmer, of Lansing; and Erva, of Akron, O.
Funeral arrangements have not yet been made.

Obituary from the "Enquirer and Evening News" of Battle Creek, Michigan dated 6 May 1923:
Charlotte Man Dead
- - - - - -
Dr. W. E. Newark, Proprietor of
Hospital Succumbs to Illness
(Special to the Enquirer-News)
Dr. W. E. Newark, proprietor of the Newark Hospital, died Saturday following an illness of two years. Mr. Newark was the first to build and operate an up to date Hospital in the city. He was the first to install the X-ray equipment in Eaton county, has been prominent in fraternal circles and an officer of Eaton county medical society.

Funeral notice from the "State Journal" of Lansing, Michigan dated 9 May 1923:
The funeral services for Dr. W. E. Newark will be held from the home here at three o'clock Tuesday afternoon, Rev. Meader of the Methodist church officiating, and the burial service to be in charge of Charlotte Lodge No. 120, F. & A. M. Dr. Newark was a practicing physician of this city for many years and was a member of the Eaton County Medical Society and an honorary member of the Academy of Medicine of Kalamazoo and of the Battle Creek Medical society.

He married (1) Delight Esther Buck 10 Jul 1881.
He married (2) Carrie Grace Fuller 3 Sep 1895 in Charlotte, Eaton, Michigan.
He married (3) Irene Emily Dilks 25 Feb 1900 in Charlotte, Eaton, Michigan.
He married (4) Ida Amelia Berg 26 Jan 1903 in Chicago, Cook, Illinois.

Children:
(1) Elmer Alvin Newark
(2) Erva Fay Newark
(3) Grayson Newark.