Mary Ross — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Montgomery-County, Alabama

Our Model Tree links this Mary Ross across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Alabama (XGBoost, ~Confirmed), with identified parents Elizabeth — first a daughter (b.~1899), then head of a 2-person household.

Age 41 b. ~1899 Female Daughter Born: Alabama Single

1940 Census Record Details

Census Year	1940
Location	Montgomery-County, Alabama
Surname	Ross
Given Name	Mary E
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	41
Marital Status	Single
Birthplace	Alabama
1935 Residence (City)	Montgomery City
1935 Residence (County)	Montgomery
Additional Details
Income (1939)	0
Highest Grade	H 4
1935 Residence	Same Place
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama
Township / Ward	Montgomery City
Est. Birth Year	~1899

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Ross	Daughter	—	41	~1899
Elizabeth Ross	Head	—	62	~1878

Census Appearances

1920

Montgomery, Alabama

Other, age 20

Montgomery, Alabama · implied b. ~1900 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Ross
Given Name	Mary E.
Relationship to Head	Granddaughter
Sex	F
Color / Race	White
Age	20
Marital Status	Single
Birthplace	Alabama
Father's Birthplace	Scotland
Mother's Birthplace	Alabama
Occupation	Stenographer
Industry	Machine Shop
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1930

Montgomery, Alabama

Other, age 30

Montgomery, Alabama · implied b. ~1900 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Ross
Given Name	Mary E.
Relationship to Head	Granddaughter
Sex	F
Color / Race	White
Age	30
Marital Status	Single
Birthplace	Alabama
Father's Birthplace	Scotland
Mother's Birthplace	Alabama
Occupation	Cashier
Industry	Insurance Co.
Class of Worker	W
Can Read/Write	Yes
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

1940

Montgomery-County, Alabama

Daughter, age 41

Montgomery-County, Alabama · implied b. ~1899 — 2 household members

Surname	Ross
Given Name	Mary E
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	41
Marital Status	Single
Birthplace	Alabama
1935 Residence (City)	Montgomery City
1935 Residence (County)	Montgomery
Income (1939)	0
Highest Grade	H 4
1935 Residence	Same Place
Birth State	Alabama
Birth Country	United States
Birthplace (normalized)	alabama

Model Tree

Model Tree available

Our Model Tree links Mary Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Ross (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Elizabeth Ross

b. ~1878

Source mother

● Household · direct · ~0.92

This person

Anchor record

Mary Ross

Daughter · 1940 · age 41 · b. ~1899 · Alabama

★ You are viewing this record

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

Original Census Page

1940 US Federal Census — Montgomery-County, Alabama Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-00067-00336)

Line	Name	Age	Relation	Occupation	Birthplace
41	Sam F Biggers	25	Head	Mechanic	Texas
42	Mary Helen Biggers	26	Wife	—	Texas
43	Miriam B Hay	67	Head	—	Tennessee
44	Nathaniel M Hay	43	Son	Clerk	Tennessee
45	Mary F Johnson	82	Lodger	—	Alabama
46	Wain W Crawford	25	Head	Laborer	Mississippi
47	Ada S Crawford	24	Wife	—	Alabama
48	Charles Wayne Crawford	2	Son	—	—
49	Lucian Hess	28	Head	Foreman	Alabama
50	Ruby A Hess	30	Wife	—	Alabama
51	Ruby M Mcclarin	49	Head	Locomotive Engineer	Alabama
52	Inez S Mcclarin	47	Wife	—	Alabama
53	Frank Mcclarin	21	Son	—	Alabama
54	Martha Mcclarin	19	Daughter	—	Alabama
55	Virginia Mcclarin	16	Daughter	—	Alabama
56	Grover C Latham	56	Head	Foreman	Alabama
57	Lucy O Latham	50	Wife	—	Alabama
58	Frances Latham	30	Daughter	Typist	Alabama
59	Charles Munroe	40	Lodger	Store Keeper	North Carolina
60	Lionel E Waller	42	Head	Credit Manager	Alabama
61	Ada O Waller	39	Wife	—	Alabama
62	Elaine Waller	19	Daughter	—	Alabama
63	Spencer E Waller	17	Son	—	Alabama
64	Elizabeth M Ross	62	Head	—	Alabama
65	Mary E Ross THIS PERSON	41	Daughter	—	Alabama
66	George Johnson	49	Head	Clerk	Alabama
67	Pattie Johnson	43	Wife	—	Alabama
68	Georgette Johnson	21	Daughter	Nurse Trainee	Alabama
69	Thomas F Mathews	57	Head	Salesman	Georgia
70	Margaret E Mathews	53	Wife	—	Alabama
71	Thomas F Jr Mathews	14	Son	—	Florida
72	Lex Mathews	12	Son	—	Ohio
73	Lilen M Hughes	50	Sister-in-law	Teacher	Alabama
74	Emily Mathews	61	Sister	Secretary	Alabama
75	Adriane Stough	45	Lodger	Teacher	Alabama
76	Margaret Hughes	63	Lodger	—	Alabama
77	Ollie Binnie Giles	40	Head	Flagman	Georgia
78	Helen O Giles	43	Wife	—	Alabama
79	Olive Giles	13	Daughter	—	Alabama

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Pedigree Summary

Mary

Gen 1 · 1 parents ~0.92

Max depth 4 (1900–1950 window)

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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