DC
Dorothy Collins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Dorothy Collins across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Collins |
| Given Name | Dorothy J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | hat check girl |
| Industry | hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 168 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Hat Check Girl |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1920 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Collins | Daughter | — | 20 | ~1920 |
| John Collins | Son | — | 22 | ~1918 |
| John Collins | Head | — | 49 | ~1891 |
| Margaret Collins | Spouse | — | 44 | ~1896 |
| Harriet Linsky | Other | — | 41 | ~1899 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age
Baltimore, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 10
Baltimore, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Dorothy T |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 20
Baltimore-City-County, Maryland · implied b. ~1920 — 5 household members
| Surname | Collins |
| Given Name | Dorothy J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | hat check girl |
| Industry | hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 168 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Dorothy Collins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Collins (~0.92 confidence) and father John Collins (~0.92 confidence) and father John Collins (~0.92 confidence) and mother Margaret Collins (~0.92 confidence) and mother Margaret Collins (~0.92 confidence) and mother Margaret Collins (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Collins
b. ~1891
Source father
● Household
· direct · ~0.92
Father
John Collins
b. ~1892
Source father
● Household
· direct · ~0.92
Father
John Collins
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Margaret Collins
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Margaret Collins
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Margaret Collins
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Collins
Daughter · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
John Collins
Sibling · 1940 · age 22
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-t0627-01541-00863)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frederick W. Mohn | 58 | Head | — | Maryland |
| 42 | Andrew Sunnegan | 37 | Head | Electrical Engineer | Maryland |
| 43 | Louise E. Sunnegan | 29 | Wife | — | Maryland |
| 44 | James A. Sunnegan | 6 | Son | — | Maryland |
| 45 | Theresa J. Sunnegan | 3 | Daughter | — | Maryland |
| 46 | Gerard Sunnegan | 1 | Son | — | Maryland |
| 47 | John J. Collins | 49 | Head | Wet Coal Dealer | Maryland |
| 48 | Margaret P. Collins | 44 | Wife | — | New York |
| 49 | John J. Jr. Collins | 22 | Son | Chauffeur | Maryland |
| 50 | Dorothy J. Collins THIS PERSON | 20 | Daughter | Hat Check Girl | Maryland |
| 51 | Harriet Linsky | 41 | Sister-in-law | Hat Check Girl | New York |
| 52 | William Franklin | 52 | Head | Proprietor Beer Tavern | Maryland |
| 53 | Laura Fox | 27 | Housekeeper | Housekeeper | Virginia |
| 54 | Laura Fox | 10 | Daughter | — | Virginia |
| 55 | Edith M. Fox | 8 | Daughter | Surveyor | Virginia |
| 56 | Ida M. Le Compte | 46 | Head | — | Maryland |
| 57 | Reese Le Compte | 22 | Son | Surveyor | Maryland |
| 58 | Thomas A. Kary | 45 | Head | Salesman | New York |
| 59 | Nina E. Kary | 36 | Wife | — | Maryland |
| 60 | Ronald A. Kary | 13 | Son | — | Virginia |
| 61 | Lois J. Kary | 12 | Daughter | — | Virginia |
| 62 | Thomas A. Kary | 76 | Father | — | Greece |
| 63 | Charles Reed | 24 | Head | Helper | Maryland |
| 64 | Mary Reed | 22 | Wife | Packer | Maryland |
| 65 | Bertha Le-Gall | 73 | Mother-in-law | — | Maryland |
| 66 | Edward R. Cegelski | 34 | Head | Welder | Maryland |
| 67 | Frances M. Cegelski | 34 | Wife | — | Washington |
| 68 | Edward F. Cegelski | 6 | Son | — | Maryland |
| 69 | Maria L. Cegelski | 2 | Daughter | — | Maryland |
| 70 | Albina Del-Pizzo | 58 | Mother-in-law | — | Italy |
| 71 | Thomas Cegelski | 28 | Head | Welder | Maryland |
| 72 | America H. Cegelski | 30 | Wife | — | Maryland |
| 73 | William B. Jessop | 50 | Head | Bookbinder | Maryland |
| 74 | Edna E. Jessop | 49 | Wife | — | Maryland |
| 75 | Benjamin Wassner | 62 | Lodger | — | Maryland |
| 76 | Charles Queen | 40 | Head | Painter | Ohio |
| 77 | Hilda E. Queen | 44 | Wife | Saleslady | Maryland |
| 78 | Frank A. Varney | 38 | Head | Carpenter | Maryland |
| 79 | Theresa E. Varney | 40 | Wife | — | Maryland |
| 80 | Frank A. Jr. Varney | 16 | Son | — | Maryland |
Pedigree Summary
Dorothy + 1 sibling
Gen 1 · 6 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)