Mary Davis — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this Mary Davis across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Eliza — first a head (b.~1876), then head of a 2-person household.

Age 64 b. ~1876 Female Head Born: Penna Widowed

1940 Census Record Details

Census Year	1940
Location	Philadelphia-County, Pennsylvania
Surname	Davis
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	64
Marital Status	Widowed
Birthplace	Penna
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Additional Details
Occupation	Clerk
Industry	Banking Co
Class of Worker	PW
Hours Worked	0
Income (1939)	1848
Highest Grade	No 8
1935 Residence	Same House
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	penna
Occupation	Clerk
Township / Ward	Philadelphia
Est. Birth Year	~1876

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
Katharine Sullivan	Daughter	—	36	~1904
Mary Davis	Head	—	64	~1876

Census Appearances

1920

Philadelphia, Pennsylvania

Daughter, age 43

Philadelphia, Pennsylvania · implied b. ~1877 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Davis
Given Name	Mary E
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	43
Marital Status	Single
Birthplace	Penna
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Irish
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	penna

1930

Philadelphia, Pennsylvania

Daughter, age 54

Philadelphia, Pennsylvania · implied b. ~1876 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Davis
Given Name	Mary E
Relationship to Head	Daughter
Sex	F
Color / Race	White
Age	54
Marital Status	Single
Birthplace	Penna
Father's Birthplace	North Ireland
Mother's Birthplace	North Ireland
Can Read/Write	Yes
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	penna

1940

Philadelphia-County, Pennsylvania

Head, age 64

Philadelphia-County, Pennsylvania · implied b. ~1876 — 2 household members

Surname	Davis
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	64
Marital Status	Widowed
Birthplace	Penna
1935 Residence (City)	Philadelphia
1935 Residence (County)	Philadelphia
Occupation	Clerk
Industry	Banking Co
Class of Worker	PW
Hours Worked	0
Income (1939)	1848
Highest Grade	No 8
1935 Residence	Same House
Birth State	Pennsylvania
Birth Country	United States
Birthplace (normalized)	penna

Model Tree

Model Tree available

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

Show:

Gen 1 Parents confidence ≈ 0.92

Mother

Eliza Davis

b. ~1846

Source mother

● Household · direct · ~0.92

This person

Anchor record

Mary Davis

Head · 1940 · age 64 · b. ~1876 · Pennsylvania

★ 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 — Philadelphia-County, Pennsylvania Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-03723-00655)

Line	Name	Age	Relation	Occupation	Birthplace
1	Fred Win	7	Daughter	—	Penna
2	Paul Win	5	Son	—	Penna
3	Winifred Wilson	60	Mother-in-law	—	Ireland
4	Winifred Wilson	24	Sister-in-law	—	Penna
7	John D. Mccarthy	44	Head	Policeman	Penna
8	Margaret Mccarthy	44	Wife	—	Penna
9	John Mccarthy	6	Son	—	Penna
10	Margaret Stacy	85	Aunt	Salesman	Penna
11	Jules Stredler	34	Head	Salesman	Penna
12	Jessie Stredler	34	Wife	—	Penna
13	Michael Stredler	2	Son	—	Penna
14	Cordelia Taylor	20	Maid	Maid	New York
15	John Hannum	50	Head	Brakeman	Penna
16	May Hannum	45	Wife	—	Penna
17	Ruth Hannum	16	Daughter	—	Penna
18	Eleanor Hannum	9	Daughter	—	Penna
19	John Hannum	2	Son	—	Penna
20	Geo. Schultz	59	Head	Salesman	Penna
21	Pauline Schultz	45	Wife	—	Penna
22	George Schultz	29	Son	Asst Chemist	Penna
23	William Schultz	25	Son	Tester	Penna
24	Leverett D'Orsay	27	Head	Wireman	New Jersey
25	Dorothy D'Orsay	27	Wife	Accountant	Penna
26	Mildred Morris	30	Lodger	Secretary	Penna
27	Maxwell Merlin	31	Head	Grocer	Roumania
28	Gertrude Merlin	34	Wife	—	Michigan
29	Irvin Merlin	10	Son	—	Penna
30	Robert Long	50	Head	Chauffeur	Ireland
31	Martha Long	48	Wife	Teacher	Penna
32	Edward Doll	62	Head	Conductor	Penna
33	Mary Doll	63	Wife	—	Penna
34	Paul Doll	37	Son	Clerk	Penna
35	Albert Muntz	36	Head	Lino Man	Penna
36	Margaret Muntz	35	Wife	—	Penna
37	Albert Muntz	5	Son	—	Penna
38	Richard Bright	55	Uncle	Clerk	Penna
39	Mary Davis THIS PERSON	64	Head	Clerk	Penna
40	Katharine Sullivan	36	Daughter	Secretary	Penna

Search for Mary Davis

All Mary Davis Census Records Discover Davis Family Tree

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)

Report inaccurate data