JT
Josephine Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Maryland
Our Model Tree links this Josephine Thomas across the 1930 and 1940 US Censuses in Montgomery-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Maryland |
| Surname | Thomas |
| Given Name | Josephine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Rockville |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Croydon Park |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Josephine | Age | Birth yr |
|---|---|---|---|---|
| Harry Thomas | Head | — | 53 | ~1887 |
| Dorothy Thomas | Daughter | — | 10 | ~1930 |
| William Thomas | Son | — | 6 | ~1934 |
| Carlton Thomas | Son | — | 2 | ~1938 |
| Helen Thomas | Daughter | — | 4 | ~1936 |
| Inez Thomas | Spouse | — | 36 | ~1904 |
| Josephine Thomas | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Montgomery, Maryland
Daughter, age 2
Montgomery, Maryland · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Josephine E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Montgomery-County, Maryland
Daughter, age 13
Montgomery-County, Maryland · implied b. ~1927 — 7 household members
| Surname | Thomas |
| Given Name | Josephine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Rockville |
| 1935 Residence (County) | Montgomery |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Josephine Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Josephine Thomas
Daughter · 1940 · age 13 · b. ~1927 · Maryland
★ You are viewing this record
Sibling
William Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thomas
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carlton Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thomas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Montgomery-County, Maryland
Open full size
1940 US Federal Census — Montgomery-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01553-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred D Rush | 43 | Wife | — | Wash DC |
| 42 | Lesley L Rush | 18 | Son | Bricklayer Apprentice | Wash DC |
| 43 | Neil Rush | 17 | Son | — | Wash DC |
| 44 | Frances Rush | 15 | Daughter | — | Wash DC |
| 45 | Shirley A Rush | 14 | Daughter | — | Wash DC |
| 46 | Herbert Rush | 6 | Son | — | Wash DC |
| 47 | Ethel E Ward | 54 | Head | Accountant | Wash DC |
| 48 | Robert E Ward | 25 | Son | Mechanic | Wash DC |
| 49 | J Fred Jones | 78 | Roomer | — | Wash DC |
| 50 | Harry Thomas | 53 | Head | Nursery Man | Maryland |
| 51 | Inez G Thomas | 36 | Wife | — | Maryland |
| 52 | Josephine Thomas THIS PERSON | 13 | Daughter | — | Maryland |
| 53 | Dorothy M Thomas | 10 | Daughter | — | Maryland |
| 54 | William Thomas | 6 | Son | — | Maryland |
| 55 | Helen L Thomas | 4 | Daughter | — | Maryland |
| 56 | Carlton J Thomas | 2 | Son | — | Maryland |
| 57 | Edward Shipe | 27 | Head | — | Penna |
| 58 | Mae E Shipe | 19 | Wife | — | Virginia |
| 59 | Leon Shipe | 2 | Son | — | Maryland |
| 60 | William H Stack | 34 | Head | Laborer | Wash DC |
| 61 | Louise Stack | 36 | Wife | — | Wash DC |
| 62 | William Jr Stack | 10 | Son | — | Wash DC |
| 63 | Douglas Mills | 23 | Head | Carpenter | Maryland |
| 64 | Alice P Mills | 22 | Wife | — | Maryland |
| 65 | Oscar Grimes | 47 | Head | Mechanic | Maryland |
| 66 | Maud Grimes | 49 | Wife | — | Maryland |
| 67 | Harold Grimes | 12 | Son | — | Maryland |
| 68 | Louis Grimes | 10 | Son | Order Clerk | Maryland |
| 69 | Robert F Keck | 50 | Head | Owner Of Store | Virginia |
| 70 | Ada N Keck | 50 | Wife | — | Virginia |
| 71 | Isabelle Keck | 15 | Daughter | — | Virginia |
| 72 | Wm P Pratt | 34 | Head | Mechanic | North Carolina |
| 73 | Clara F Pratt | 25 | Wife | — | Maryland |
| 74 | Ruth M Pratt | 5 | Daughter | — | Maryland |
| 75 | Lucy E Pratt | 3 | Daughter | — | Maryland |
| 76 | Wm F Pratt | 2 | Son | — | Maryland |
| 77 | Jennie C Pratt | 1 | Daughter | — | Maryland |
| 78 | Alex Quinn | 49 | Head | State Roads | Maryland |
| 79 | Eva Quinn | 51 | Wife | — | Maryland |
| 80 | Dorothy Quinn | 18 | Daughter | Clerk | Maryland |
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)