MS
Mary Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Sullivan across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Raymond & Joseph — first a daughter (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Box Maker |
| Industry | Box Company |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Box Maker |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1918 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillian Sullivan | Daughter | — | 22 | ~1918 |
| Mary Sullivan | Daughter | — | 22 | ~1918 |
| Adele Sullivan | Daughter | — | 24 | ~1916 |
| George Sullivan | Head | — | 50 | ~1890 |
| Martha Morgan | Other | — | 25 | ~1915 |
| Fred Sullivan | Other | — | 74 | ~1866 |
| Elizabeth Sullivan | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 2
Baltimore, Maryland · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 12
Baltimore, Maryland · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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 22
Baltimore-City-County, Maryland · implied b. ~1918 — 7 household members
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore |
| Occupation | Box Maker |
| Industry | Box Company |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 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 Mary Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Raymond Sullivan (~0.92 confidence) and father Joseph Sullivan (~0.92 confidence) and father George Sullivan (~0.92 confidence) and mother Ida Sullivan (~0.92 confidence) and mother Elizabeth Sullivan (~0.92 confidence) and mother Stella Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Raymond Sullivan
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Joseph Sullivan
b. ~1892
Source father
● Household
· direct · ~0.92
Father
George Sullivan
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Ida Sullivan
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Sullivan
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Stella Sullivan
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Sullivan
Daughter · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Lillian Sullivan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adele Sullivan
Sibling · 1940 · age 24
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-t0627-01535-00946)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Wastler|Wastler | 30 | Head | Laborer | Maryland |
| 2 | Catherine Wastler|Wastler | 24 | Wife | — | Maryland |
| 3 | Charles Wastler|Wastler | 8 | Son | — | Maryland |
| 4 | Delores Wastler|Wastler | 7 | Daughter | — | Maryland |
| 5 | Paul Wastler|Wastler | 6 | Son | — | Maryland |
| 6 | Betty Wastler|Wastler | 3 | Daughter | — | Maryland |
| 7 | Ronald Wastler|Wastler | 1 | Son | — | Maryland |
| 8 | Paul Koch | 50 | Father-in-law | Painter | Maryland |
| 9 | George Koch | 14 | Brother-in-law | — | Maryland |
| 10 | John R. Braly | 73 | Head | — | Maryland |
| 11 | Mary E. Braly | 69 | Wife | — | Virginia |
| 12 | George C. Sullivan | 50 | Head | Boilermaker | Maryland |
| 13 | Elizabeth Sullivan | 55 | Wife | — | Maryland |
| 14 | Adele Sullivan | 24 | Daughter | Laboratory | Maryland |
| 15 | Mary Sullivan THIS PERSON | 22 | Daughter | Box Maker | Maryland |
| 16 | Lillian O. Sullivan | 22 | Daughter | Taker | Maryland |
| 17 | Martha O. Morgan | 25 | Boarder | Maid | Maryland |
| 18 | Fred Sullivan | 74 | Father | — | Maryland |
| 19 | William Edelman | 61 | Head | Watchman | Maryland |
| 20 | Annie E. Edelman | 57 | Wife | — | Maryland |
| 21 | Lewis Voslonges | 41 | Head | Meat Cutter | Maryland |
| 22 | Margaret Voslonges | 39 | Wife | Taker | Maryland |
| 23 | Thelma Voslonges | 16 | Daughter | — | Maryland |
| 24 | James Voslonges | 14 | Son | — | Maryland |
| 25 | Annette Voslonges | 11 | Daughter | — | Maryland |
| 26 | Herman Kraft | 37 | Head | Laborer | Maryland |
| 27 | Margaret Kraft | 34 | Wife | — | Maryland |
| 28 | June Kraft | 13 | Daughter | — | Maryland |
| 29 | Willard Kraft | 6 | Son | — | Maryland |
| 30 | Edward Zaman | 29 | Head | Painting | Maryland |
| 31 | William Papelius | 68 | Head | — | Maryland |
| 32 | Minnie Libera | 40 | Daughter | Housework | Maryland |
| 33 | Michael Purgent | 54 | Head | Meat Packer | Maryland |
| 34 | Elizabeth Purgent | 52 | Wife | Mach Oper | Maryland |
| 35 | Mildred Purgent | 14 | Daughter | — | Maryland |
| 36 | Conrad Purgent | 17 | Son | Shrouder | Maryland |
| 37 | Stella Snyder | 31 | Daughter | — | Maryland |
| 38 | Jean Snyder | 8 | Granddaughter | — | Maryland |
| 39 | William Wengert | 50 | Head | Dip Setter | Maryland |
| 40 | Annie E. Wengert | 45 | Wife | — | Maryland |
Pedigree Summary
Mary + 2 siblings
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)