Mary Allison — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Denver-County, Colorado

Our Model Tree links this Mary Allison across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.

Age 62 b. ~1878 Female Head Born: Missouri Widowed

1940 Census Record Details

Census Year	1940
Location	Denver-County, Colorado
Surname	Allison
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	62
Marital Status	Widowed
Birthplace	Missouri
1935 Residence (City)	City & County of Denver
1935 Residence (County)	Denver
Additional Details
Income (1939)	0
Highest Grade	No 7
1935 Residence	Same house
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri
Township / Ward	City County Of Denver
Est. Birth Year	~1878

Household Members

Census records only state relationship to the household head. Pairwise kinship is derived (~90–95% accurate), not recorded. Step/blended families and boarders can break it.

3 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Lucy Allison	Daughter	—	25	~1915
Mary Allison	Head	—	62	~1878
Mack Allison	Son	—	27	~1913

Census Appearances

1920

Denver, Colorado

Other, age 38

Denver, Colorado · implied b. ~1882 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Allison
Given Name	Mary
Relationship to Head	Dau
Sex	F
Color / Race	White
Age	38
Marital Status	Married
Birthplace	Missouri
Father's Birthplace	Virginia
Mother's Birthplace	Missouri
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

1930

Denver, Colorado

Spouse, age 50

Denver, Colorado · implied b. ~1880 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Allison
Given Name	Mary M
Relationship to Head	wife
Sex	F
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Missouri
Age at First Marriage	26
Father's Birthplace	Virginia
Mother's Birthplace	Missouri
Occupation	none
Can Read/Write	Yes
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

1940

Denver-County, Colorado

Head, age 62

Denver-County, Colorado · implied b. ~1878 — 3 household members

Surname	Allison
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	62
Marital Status	Widowed
Birthplace	Missouri
1935 Residence (City)	City & County of Denver
1935 Residence (County)	Denver
Income (1939)	0
Highest Grade	No 7
1935 Residence	Same house
Birth State	Missouri
Birth Country	United States
Birthplace (normalized)	missouri

Model Tree

Linked across censuses

Our Model Tree links Mary Allison across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Mary Allison

Head · 1940 · age 62 · b. ~1878 · Colorado

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Denver-County, Colorado Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00489-00437)

Line	Name	Age	Relation	Occupation	Birthplace
41	Harriet Strawn	77	Head	—	Illinois
42	Sara Fischer	71	Head	—	Iowa
43	Claude L. Trimble	65	Head	Auditor	Colorado
44	Nancy N. Trimble	43	Wife	—	Colorado
45	Jack Willard	20	Son	—	Colorado
46	Alfred E. Reeves	48	Head	Cashier	Colorado
47	Emma L. Reeves	43	Wife	—	Ohio
48	Alfred Jr. Reeves	19	Son	—	Colorado
49	Dorothy M. Reeves	18	Daughter	—	Colorado
50	Yvonna Reeves	16	Daughter	—	Colorado
51	Rosalie Reeves	14	Daughter	—	Colorado
52	Helen Reeves	2	Daughter	—	Colorado
53	Mary Allison THIS PERSON	62	Head	—	Missouri
54	Mack H. Allison	27	Son	Merchandise Manager	Colorado
55	Lucy Ann Allison	25	Daughter	Dancing Teacher	Oklahoma
56	Russell E. Thompson	38	Head	Electrical Engineer	Minnesota
57	Gwendolyn Thompson	36	Wife	—	Colorado
58	Carol Thompson	11	Daughter	—	Colorado
59	Gordon Thompson	9	Son	—	Colorado
60	Clyde C. Roberts	34	Head	First Lieutenant	Minnesota
61	Enada Roberts	35	Wife	—	Nicaragua
62	Richard Roberts	5	Son	—	California
63	James Roberts	2	Son	—	California
64	Hilda Valle	17	Daughter	—	Nicaragua
65	James Watson Reed	73	Head	—	Penn.
66	Grace H. Reed	62	Wife	—	Penn.
67	Jacques H. Ahles	47	Head	Lawyer	Delaware
68	Elizabeth Dew Ahles	39	Wife	—	Georgia
69	Wendell P. Ahles	11	Son	—	Texas
70	Barbara Dew Ahles	7	Daughter	—	Tennessee
71	Owen M. Tathell	57	Head	Superintendent Of Composing Room	Iowa
72	Pearl G. Tathell	53	Wife	—	Iowa
73	Edward A. Tathell	21	Son	—	Colorado
74	Andrew Anderson	64	Head	Custodian	Iowa
75	Amelia Anderson	61	Wife	—	Aaland Isle
76	Geo. M. Konig	65	Head	Operator Of Press	Illinois
77	Hortense Konig	62	Wife	—	Ohio
78	Bernice Jones	47	Lodger	Housekeeper	Penn.
79	Luther Milton Warren	25	Head	Salesman	Arkansas
80	Sarah Mae Warren	25	Wife	—	Kansas

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.

Source: National Archives and Records Administration (NARA)

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