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Joseph Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Joseph Sullivan across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 14-person household.
Age 14
b. ~1926
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | Hs 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1926 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Mary Kuhn | Daughter | — | 25 | ~1915 |
| Florence Sullivan | Daughter | — | 4 | ~1936 |
| Marie Sullivan | Daughter | — | 20 | ~1920 |
| Gloria Sullivan | Daughter | — | 1 | ~1939 |
| Margaret Sullivan | Daughter | — | 11 | ~1929 |
| Rebecca Sullivan | Daughter | — | 8 | ~1932 |
| Carmine Sullivan | Daughter | — | 2 | ~1938 |
| Marie Sullivan | Head | — | 43 | ~1897 |
| Joseph Kuhn | Other | — | 22 | ~1918 |
| Thomas Sullivan | Son | — | 16 | ~1924 |
| C Sullivan | Son | — | 18 | ~1922 |
| Andrew Sullivan | Son | — | 6 | ~1934 |
| John Sullivan | Son | — | 12 | ~1928 |
| Joseph Sullivan | Son | — | 14 | ~1926 |
Census Appearances
1930
Baltimore, Maryland
Son, age 2
Baltimore, Maryland · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| 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 |
1940
Baltimore-City-County, Maryland
Son, age 14
Baltimore-City-County, Maryland · implied b. ~1926 — 14 household members
| Surname | Sullivan |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | Hs 6 |
| 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 Joseph Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Sullivan
Son · 1940 · age 14 · b. ~1926 · Maryland
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Sibling
John Sullivan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Sullivan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Kuhn
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Sullivan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carmine Sullivan
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Sullivan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Sullivan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gloria Sullivan
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
C Sullivan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rebecca Sullivan
Sibling · 1940 · age 8
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
39 people indexed on this census page (nara:1940:m-t0627-01516-00583)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Dunn | 39 | Head | Laborer | Virginia |
| 42 | Jenifer Dunn | 34 | Wife | Housekeeper | Virginia |
| 43 | Annie Pearl Dunn | 7 | Daughter | — | Maryland |
| 44 | Pope Fair | 36 | Head | Laborer | S. Carolina |
| 45 | Sara Fair | 26 | Wife | Housekeeper | S. Carolina |
| 46 | Leon Fair | 1 | Son | — | Maryland |
| 47 | Cora Cuffee | 29 | Head | Maid | N. Carolina |
| 48 | Norman Lenge | 45 | Head | Operator | Maryland |
| 49 | Betty Lenge | 45 | Wife | Housekeeper | Maryland |
| 50 | Norman Lenge | 19 | Son | Kitchen Helper | Maryland |
| 51 | L. Herbert Lenge | 18 | Son | Clerk | Maryland |
| 52 | Martha L. O'Keefe | 74 | Mother | Housekeeper | Maryland |
| 53 | John J. Plantholt | 56 | Head | Skilled Laborer | Maryland |
| 54 | Minnie Plantholt | 46 | Wife | Housekeeper | Maryland |
| 55 | William Plantholt | 20 | Son | Lab Clerk | Maryland |
| 56 | Edmund Plantholt | 18 | Son | Clerk | Maryland |
| 57 | Elizabeth Plantholt | 85 | Aunt | Pension | Maryland |
| 58 | Catherine Plantholt | 58 | Sister | Bk Keeper | Maryland |
| 59 | Louis Boyd | 30 | Head | Housekeeper | Virginia |
| 60 | John H. Boyd | 3 | Son | — | Virginia |
| 61 | Milton Baker | 62 | Head | Carpenter | Virginia |
| 62 | Emma Baker | 57 | Wife | Housekeeper | Virginia |
| 63 | Marie Sullivan | 43 | Head | Housekeeper | Maryland |
| 64 | Marie Sullivan | 20 | Daughter | Waitress | Maryland |
| 65 | C. Roger Sullivan | 18 | Son | New Worker | Maryland |
| 66 | Thomas Sullivan | 16 | Son | New Worker | Maryland |
| 67 | Joseph Sullivan THIS PERSON | 14 | Son | — | Maryland |
| 68 | John Sullivan | 12 | Son | — | Maryland |
| 69 | Margaret Sullivan | 11 | Daughter | — | Maryland |
| 70 | Rebecca Sullivan | 8 | Daughter | — | Maryland |
| 71 | Andrew Sullivan | 6 | Son | — | Maryland |
| 72 | Florence Sullivan | 4 | Daughter | — | Maryland |
| 73 | Carmine Sullivan | 2 | Daughter | — | Maryland |
| 74 | Gloria Sullivan | 1 | Daughter | — | Maryland |
| 75 | Joseph Kuhn | 22 | Son in Law | Checker | Maryland |
| 76 | Mary Kuhn | 25 | Daughter | Housekeeper | Maryland |
| 77 | Hazel Hyatt | 44 | Head | Housekeeper | Maryland |
| 78 | Tony Padilla | 37 | Head | — | Maryland |
| 79 | Marie Padilla | 32 | Wife | Housekeeper | 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)