1870 United States Federal Census
Name: William Sherman
Birth Year: abt 1865
Age in 1870: 5
Birthplace: New York
Home in 1870: Moriah, Essex, New York
Race: White
Gender: Male
Value of real estate: View image
Post Office: Moriah
Household Members:
Name Age
Judson Sherman 54
Mary Sherman 42
Juliette Sherman 16
William Sherman 5

Source Citation: Year: 1870; Census Place: Moriah, Essex, New York; Roll M593_936; Page: 209A; Image: 421; Family History Library Film: 552435.

1900 United States Federal Census
Name: William T Sherman
Home in 1900: Crown Point, Essex, New York
Age: 35
Birth Date: Mar 1865
Birthplace: New York
Race: White
Gender: Male
Relationship to Head of House: Head
Father's Name: Judson
Father's Birthplace: New York
Mother's Birthplace: Vermont
Spouse's name: Lollie S
Marriage Year: 1892
Marital Status: Married
Years Married: 8
Occupation: View on Image
Household Members:
Name Age
William T Sherman 35
Lollie S Sherman 31
Judson Sherman 83

Source Citation: Year: 1900; Census Place: Crown Point, Essex, New York; Roll T623_1035; Page: 7A; Enumeration District: 35.

In 1900, there was no profession listed for William

**
In 1910, William is listed as a Physician:
1910 United States Federal Census
Name: William T Shaman
[William F Sherman]
Age in 1910: 25
[45]
Estimated birth year: abt 1885
[abt 1865]
Birthplace: New York
Relation to Head of House: Head
Father's Birth Place: New York
Mother's Birth Place: Vermont
Spouse's name: Lottie S
Home in 1910: Crown Point, Essex, New York
Marital Status: Married
Race: White
Gender: Male
Neighbors: View others on page
Household Members:
Name Age
William T Shaman 25
[45]
Lottie S Shaman 41

Source Citation: Year: 1910; Census Place: Crown Point, Essex, New York; Roll T624_933; Page: 3A; Enumeration District: 41; Image: 1009.
**
In 1920, he is a practicing physician, and they have a niece living with them:

1920 United States Federal Census
Name: William F Shuman
[William F Sherman]
[Willian Shuman]
Home in 1920: Crown Point, Essex, New York
Age: 54
Estimated birth year: abt 1866
Birthplace: New York
Relation to Head of House: Self (Head)
[Head]
Spouse's name: Lottie
Father's Birth Place: New York
Mother's Birth Place: Vermont
Marital Status: Married
Race: White
Sex: Male
Home owned: Own
Able to read: Yes
Able to Write: Yes
Neighbors: View others on page
Household Members:
Name Age
William F Shuman 54
Lottie Shuman 52
Marian Barnet 17
[10]

Source Citation: Year: 1920;Census Place: Crown Point, Essex, New York; Roll T625_1111; Page: 8B; Enumeration District: 42; Image: 638.

and in 1930:
1930 United States Federal Census
Name: William I Sherman
Home in 1930: Crown Point, Essex, New York
View Map
Age: 65
Estimated birth year: abt 1865
Birthplace: New York
Relation to Head of House: Head
Spouse's name: Lottie F
Race: White
Household Members:
Name Age
William I Sherman 65
Lottie F Sherman 61

Source Citation: Year: 1930; Census Place: Crown Point, Essex, New York; Roll 1437; Page: 4B; Enumeration District: 4; Image: 821.0.

**
in 1928 he was elected President of his county's medical society.

all additional information courtesy of kedzz in the forums.