Mary Martinez — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Huerfano-County, Colorado

Our Model Tree links this Mary Martinez across the 1920, 1930 and 1940 US Censuses in Huerfano-County, Colorado (XGBoost, ~Confirmed) — first a spouse (b.~1903), then head of a 5-person household.

Age 37 b. ~1903 Female Spouse Born: Colorado Married

1940 Census Record Details

Census Year	1940
Location	Huerfano-County, Colorado
Surname	Martinez
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Colorado
1935 Residence (City)	Walsenburg
1935 Residence (County)	Huerfano
Additional Details
Occupation	35
Industry	Seamstress
Class of Worker	W.P.A. Project
Hours Worked	2
Highest Grade	No 2
1935 Residence	Colorado
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado
Occupation	35
Township / Ward	Walsenburg City
Est. Birth Year	~1903

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Martinez	Spouse	—	37	~1903
Gilbert Martinez	Son	—	15	~1925
Ray Martinez	Son	—	19	~1921
John Martinez	Head	—	42	~1898
Bernie Martinez	Son	—	7	~1933

Census Appearances

1920

Huerfano, Colorado

Spouse, age 18

Huerfano, Colorado · implied b. ~1902 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martines
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	18
Marital Status	Married
Birthplace	Colorado
Father's Birthplace	Colorado
Mother's Birthplace	Colorado
Can Read	No
Can Write	No
Speaks English	Yes
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

1930

Huerfano, Colorado

Spouse, age 26

Huerfano, Colorado · implied b. ~1904 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Martinez
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	26
Marital Status	Married
Birthplace	Colorado
Age at First Marriage	14
Father's Birthplace	Colorado
Mother's Birthplace	Colorado
Can Read/Write	No
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

1940

Huerfano-County, Colorado

Spouse, age 37

Huerfano-County, Colorado · implied b. ~1903 — 5 household members

Surname	Martinez
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	37
Marital Status	Married
Birthplace	Colorado
1935 Residence (City)	Walsenburg
1935 Residence (County)	Huerfano
Occupation	35
Industry	Seamstress
Class of Worker	W.P.A. Project
Hours Worked	2
Highest Grade	No 2
1935 Residence	Colorado
Birth State	Colorado
Birth Country	United States
Birthplace (normalized)	colorado

Model Tree

Linked across censuses

Our Model Tree links Mary Martinez 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 Martinez

Spouse · 1940 · age 37 · b. ~1903 · 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 — Huerfano-County, Colorado Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00464-00637)

Line	Name	Age	Relation	Occupation	Birthplace
1	Luther Martinez	4	Son	—	Colorado
2	Gladys Martinez	1	Daughter	—	Colorado
3	John Martinez	42	Head	Laborer	Colorado
4	Mary Martinez THIS PERSON	37	Wife	35	Colorado
5	Ray Martinez	19	Son	Laborer	Colorado
6	Gilbert Martinez	15	Son	New Worker	Colorado
7	Bernie Martinez	7	Son	16	Colorado
8	Bert Matter	37	Head	—	Italy
9	Virginia Matter	36	Wife	—	Mexico
10	Alberta Virginia Matter	2	Daughter	—	Colorado
11	Joe Bert Matter	0	Son	—	Colorado
12	Joe Espinoza	40	Head	Laborer	Colorado
13	Mary Espinoza	27	Wife	—	Colorado
14	Claude Espinoza	6	Son	—	Colorado
15	Ray Espinoza	5	Son	—	Colorado
16	Romolo Espinoza	4	Son	—	Colorado
17	Manuel Espinoza	3	Son	—	Colorado
18	Virginia Espinoza	1	Daughter	—	Colorado
19	Mauricio Apodaca	23	Head	Laborer	New Mexico
20	Ernestine Apodaca	18	Wife	—	Colorado
21	Ned Calderon	47	Head	Laborer	Mexico
22	Lupe Calderon	39	Wife	—	Mexico
23	John Calderon	21	Son	Laborer	Colorado
24	Josephine Calderon	19	Daughter	25	Colorado
25	Jessie Calderon	16	Daughter	New Worker	Colorado
26	Caroline Calderon	14	Daughter	—	Colorado
27	Vincent Calderon	11	Son	—	Colorado
28	Ramona Calderon	7	Daughter	—	Colorado
29	Elizabeth Calderon	4	Daughter	—	Colorado
30	Agapito Archuleta	73	Head	—	New Mexico
31	Max Hurtado	47	Head	Laborer	Colorado
32	Vivian Hurtado	44	Wife	—	Colorado
33	Vivian Hurtado	9	Daughter	—	Colorado
34	Egan Hurtado	24	Head	56	Colorado
35	Anita Hurtado	20	Wife	—	Colorado
36	Maxine Hurtado	4	Daughter	—	Colorado
37	Asmita Hurtado	2	Daughter	—	Colorado
38	Jose Heleno Cordova	89	Head	—	Mexico
39	Carlos Cordova	53	Head	—	Colorado
40	Gertrude Cordova	53	Wife	—	Colorado

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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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