The 1920 Census for School District 21, McCone County, MT
Thomas Erickson, age 33(1886/1887) Wisconsin, to father born in Sweden, mother in Norway (with those parents, he must have had a lot of inter-conflicting thoughts), farmer/general farm, Owned
Blance(as written) age 38(1881/1882) Wisconsin to both parents born in WI.
--This couple looks to be correct, but you would need your review of your data to identify
This "appears" to be the correct Thomas
The 1900 Census for Seymour, Eau Claire, WI
Andrew Erickson, May 1853, Norway to both parents born in Sweden
Minnie, May 1852, Norway
George, Oct 1885
Thomas, Jan 1887
Richard, April 1889.
The World War I Draft Registration Card Image Database:
Thomas Erickson, 30, born January 20, 1887 in Eau Claire, WI, living in Hay Coulee, MT; farmer, Single, registered on Jun 5, 1917 (National Registration Day). Hay Coulee is found to be a valley, it was found in Valley County, Toole, Blaine, Big Horn, Liberty County and others, He registered in Dawson County, which is neighboring to McCone Co and Valley Counties.
The World War II Draft Registration (The Old Man Draft). Thomas (NMN) Erickson, born Jan 20, 1887, in Eau Claire, WI, was living in Marysville, WA. He was working for William McMaster, McMaster Shingle Co, in Marysville. The "Name and Address of Person Who Will Always Know Your Address: Frank Bowe, Marysville, WA." He registered on April 27, 1942. He was 5'-11", 142 pounds, brown Hair, light complexion.
--The fact his wife was not identified as knowing his address does NOT mean anything. They "could" have divorced, separated. She could have died. They could be apart for some reason. Or, this is not the correct person....OR, what I usually find, he identified the name of a friend, rather than a family member.
The Washington Death Certificate database:
--Thomas Erickson, died 30 Sep 1928 in Everett, Snohomish Co, WA, age at death: 7 years, 3 months 7 days (June 23, 1921), parents were Thomas Erickson and Blanche Carpenter.
--Thomas Erickson, died 21 June 1957, Everett, Snohomish Co, WA, age 70 (1887). father was Andrew Erickson.
--Blanche Carpenter Erickson, died 3 June 1956 in Everett, Snohomish, WA, age 77 (1879). Spouse: Thomas Erickson, father Andrew Carpenter.
--These two "appear" to be the correct Blanche and Thomas; however, the young Thomas is either the wrong one, an adopted son, or a real surprise child.
I could not find them in the 1930 Census. So, I missed them, the census missed them in Washington/Montana, the record/notes of the enumerator were lost, the page wasn't copied for transcription.
If you have further information on the person you are seeking, their known Dates of birth, etc. that might help. There are other steps that can be used...once exact identity is established.