JM
John Mullen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this John Mullen across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Mullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Mullen | Daughter | — | 11 | ~1929 |
| Elizabeth Mullen | Head | — | 23 | ~1917 |
| Viola Mullen | Other | — | 18 | ~1922 |
| Charles Wolfgang | Other | — | 58 | ~1882 |
| John Mullen | Son | — | 25 | ~1915 |
| Frederick Mullen | Son | — | 12 | ~1928 |
Census Appearances
1920
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| 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
Son, age 14
Baltimore, Maryland · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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
Son, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 6 household members
| Surname | Mullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 8 |
| 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 John Mullen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mullen (~0.92 confidence) and father John Mullen (~0.92 confidence) and mother Annie Mullen (~0.92 confidence) and mother Anna Mullen (~0.92 confidence) and mother Elizabeth Mullen (~0.50 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
John Mullen
b. ~1887
Source father
● Household
· direct · ~0.92
Father
John Mullen
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Annie Mullen
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Anna Mullen
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mullen
b. ~1917
Source mother
● Household
· direct · ~0.5
This person
Anchor record
John Mullen
Son · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Mary Mullen
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Mullen
Sibling · 1940 · age 12
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-t0627-01509-00743)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anthony Pellegrini | 10 | Son | — | Maryland |
| 42 | Mike Miller | 68 | Head | — | Maryland |
| 43 | Thomas J. Young | 64 | Head | Laborer | Maryland |
| 44 | Louis Speert | 50 | Head | Laborer | Maryland |
| 45 | Anthony Correntino | 54 | Head | Operator | Italy |
| 46 | Charles Hayward | 54 | Head | Own Business | Massachusetts |
| 47 | Emile Kunze | 78 | Head | — | Germany |
| 48 | Carl A. Olson | 65 | Head | — | Sweden |
| 49 | Anthony Brusa | 74 | Head | — | Italy |
| 50 | Michael Holland | 74 | Head | — | Maryland |
| 51 | Mathew Moore | 69 | Head | Watchman | California |
| 52 | John Breaswater | 54 | Head | Laborer | Germany |
| 53 | Otto Crieg | 64 | Head | Watchman | France |
| 54 | Allen Moore | 75 | Head | — | New York |
| 55 | Adam Wehner | 72 | Head | Hand Oyster | Austria |
| 56 | William Mitchell | 60 | Head | Own Business | Canada |
| 57 | Morris Obertein | 60 | Head | Own Business | Poland |
| 58 | Rose Obertein | 62 | Wife | — | Poland |
| 59 | Raymond Labadia | 53 | Head | Laborer | Spain |
| 60 | Laura Labadia | 45 | Wife | — | Mexico |
| 61 | Josephine Labadia | 10 | Daughter | — | Maryland |
| 62 | Deloris Labadia | 10 | Daughter | — | Maryland |
| 63 | Elizabeth Mullen | 23 | Head | Waitress | Maryland |
| 64 | Frederick Mullen | 12 | Son | — | Maryland |
| 65 | Mary Mullen | 11 | Daughter | — | Maryland |
| 66 | John Mullen THIS PERSON | 25 | Son | — | Maryland |
| 67 | Viola Mullen | 18 | Daughter-in-law | — | Maryland |
| 68 | Charles Wolfgang | 58 | Lodger | Seaman | Pennsylvania |
| 69 | Henry Schutz | 75 | Head | — | Maryland |
| 70 | Eva Schutz | 68 | Wife | — | Maryland |
| 71 | John Logan | 64 | Head | Painter-Janitor | Scotland |
| 72 | Mary Fallon | 38 | Cousin-in-law | — | New Jersey |
| 73 | Theresa Fallon | 8 | Daughter | — | Maryland |
| 74 | Mildred Fallon | 5 | Daughter | — | Maryland |
| 75 | Minerva Fallon | 5 | Daughter | — | Maryland |
| 76 | Virginia Fallon | 3 | Daughter | — | Maryland |
| 77 | Joseph Teresi | 27 | Head | Meat Slicer | Maryland |
| 78 | Jennie Teresi | 17 | Wife | — | Maryland |
| 79 | Lloyd Dugger | 33 | Head | Engineer | West Virginia |
| 80 | Dove Dugger | 34 | Wife | — | West Virginia |
Related Census Records
Pedigree Summary
John + 2 siblings
Gen 1 · 5 parents
~0.84
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)