From obituary on Mattson Funeral Home & Cremation Service website:

Harold E. Anderson, age 99, of Forest Lake, Minnesota passed away peacefully, Tuesday, February 3, 2009. Harold was born May 8, 1909 to Frank and Louise (Spangler) Anderson in Olds, Iowa. He is preceded in death by his wife Edith and five siblings. He is survived by his sons; daughter; seven grandchildren; seven great grandchildren; three siblings; numrous other extended family

From digital image of Iowa State Department of Health, Records and Statistics Division - Delayed Certificate of Birth, Iowa Delayed Birth Records, 1850-1939, familysearch.org:

Number: 383014
Full name at birth: Harold Edgar Anderson
Date of birth: May 8, 1909
Color: White
Sex: Male
Birthplace: Olds, Henry County, Iowa
Father: Frank Edgar Anderson
Father's birthplace: Swedesburgh, Iowa
Mother: Louise Spangler
Birthplace: Olds, Iowa
Affidavit: I hereby declare upon oath that the above statements are true: Signature: . . . . . .
Address: 20 NW 7th Ave., Forest Lake, Minnesota
Subscribed and sworn to before me on January 20, 1971 (notary Information)
Abstract of Supporting Evidence: Name and kind of document, and by whom issues and signed:

1.) baptismal record - date original document was made: July 5, 1909
2.) New York Life Ins. policy - date original was made: October 3, 1924

Information Concerning Registrant as Stated in Documents

1.) Birth date: May 8, 1909 - birthplace: Swedesburg, Iowa
2.) Birth date: May 8, 1909 - birthplace: Iowa

From U.S., Evangelical Lutheran Church in America, Swedish American Church Records, 1800-1947 - Swedesburg, Iowa - Swedesburg Evangelical Lutheran, ancestry.com (digital image of original record);

Baptism Date: July 5, 1909
Name: Harold Edgar
Born: ay 8, 1909
Birth Place: Swedesburg, Iowa
Parents: Frank E. Anderson and Louise

From Minnesota Official Marriage System (www.moms.mn.gov):

Minnesota County of Record: Chisago
Certificate Number: M1O481
Date of Marriage: May 12, 1940
Applicant 1: Harold E. Anderson
Applicant 2: Edith Anderson

From Minnesota, Death Index, 1908-2017, ancestry.com:

Certificate Number: 2009-MN-003719
Name: Harold Edgar Anderson
Birth Date: 8 May 1909
Birth Place: Olds, Iowa, USA
Occupation: printer - newspaper
Death Date: 3 Feb 2009
Death Place: Forest Lake, Washington, Minnesota, United States
Father: Frank Anderson
Mother: Louise (Spangler) Anderson
From U.S., Social Security Death Index, 1935-2014:

SSN Issued: Minnesota (Before 1951)
Name: Harold Edgar Anderson
Last Residence: 55025 Forest Lake, Washington County, Minnesota
Born: May 8, 1909
Died: February 3, 2009