CT
Catherine Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Catherine Thompson across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 10 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Catherine Thompson | Daughter | — | 18 | ~1922 |
| John Thompson | Son | — | 22 | ~1918 |
| Emma Thompson | Spouse | — | 41 | ~1899 |
| Ellen Thompson | Daughter | — | 7 | ~1933 |
| John Thompson | Head | — | 44 | ~1896 |
| Herbert Thompson | Son | — | 9 | ~1931 |
| Levin Thompson | Son | — | 13 | ~1927 |
| James Thompson | Son | — | 20 | ~1920 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 8
Baltimore, Maryland · implied b. ~1922 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 18
Baltimore-City-County, Maryland · implied b. ~1922 — 8 household members
| Surname | Thompson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 10 |
| 1935 Residence | Same house |
| 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 Catherine Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Catherine Thompson
Daughter · 1940 · age 18 · b. ~1922 · Maryland
★ You are viewing this record
Sibling
John Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Levin Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Thompson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Thompson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Thompson
Sibling · 1940 · age 7
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01515-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kitty King | 15 | — | — | Maryland |
| 42 | Daniel J. Doerer | 30 | Head | Attendant | Maryland |
| 43 | Ruth E. O. Doerer | 25 | Wife | — | Maryland |
| 44 | Mary E. Doerer | 6 | Daughter | — | Maryland |
| 45 | Daniel J. Jr. Doerer | 2 | Son | — | Maryland |
| 46 | James Preston | 64 | Father-in-law | Carpenter | Maryland |
| 47 | Elizabeth Preston | 49 | Mother-in-law | — | Maryland |
| 48 | Conrad Graf | 31 | Head | Carpenter | Maryland |
| 49 | Estelle O. Graf | 30 | Wife | — | Maryland |
| 50 | Donald Graf | 7 | Son | — | Maryland |
| 51 | Edward J. O. Evans | 44 | Head | U. S. Customs Inspector | Maryland |
| 52 | Catherine M. Evans | 34 | Wife | — | Maryland |
| 53 | Theodore C. Evans | 11 | Son | — | Maryland |
| 54 | John D. Evans | 8 | Son | — | Maryland |
| 55 | Clifton L. O. Simpson | 77 | Head | — | Maryland |
| 56 | Daniel J. O. Hardy | 51 | Head | Painter | Pennsylvania |
| 57 | Bessie C. Hardy | 42 | Wife | Steamstress | Maryland |
| 58 | John H. Jr. Thompson | 44 | Head | Postal Clerk | Maryland |
| 59 | Emma M. O. Thompson | 41 | Wife | — | Maryland |
| 60 | John P. Thompson | 22 | Son | Library Asst. | Maryland |
| 61 | James W. Thompson | 20 | Son | — | Maryland |
| 62 | Catherine Thompson THIS PERSON | 18 | Daughter | — | Maryland |
| 63 | Levin Thompson | 13 | Son | — | Maryland |
| 64 | Herbert W. Thompson | 9 | Son | — | Maryland |
| 65 | Ellen P. Thompson | 7 | Daughter | — | Maryland |
| 66 | Harvey Marley | 42 | Head | Clerk | Maryland |
| 67 | Helen O. Marley | 65 | Mother | — | Maryland |
| 68 | William J. Murray | 58 | Head | Printer | Maryland |
| 69 | Marie L. O. Murray | 58 | Wife | — | Maryland |
| 70 | Marie T. Murray | 32 | Daughter | General Office | Maryland |
| 71 | William B. Murray | 26 | Son | Salesman | Maryland |
| 72 | Francis C. O. Baer | 54 | Head | Nurse | Maryland |
| 73 | Fanny C. Baer | 84 | Mother | — | Maryland |
| 74 | Eloise Spencer | 63 | Cousin | — | Maryland |
| 75 | Leticia E. Ricard | 60 | Cousin | — | Maryland |
| 76 | Emma O. Lower | 58 | Head | — | Maryland |
| 77 | Elizabeth O. Wright | 69 | Head | — | Maryland |
| 78 | Albaite Tucker | None | Head | — | Maryland |
| 79 | Francis O. Gross | 23 | Head | Asst. Repairman | Maryland |
| 80 | Mildred Gross | 22 | Wife | Beautician | 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)