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Mary Mullen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Mullen across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 5-person household.
Age 4
b. ~1926
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Mullen |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mullen | Daughter | — | 12 | ~1918 |
| Mary Mullen | Daughter | — | 4 | ~1926 |
| Regina Mullen | Daughter | — | 12 | ~1918 |
| William Mullen | Head | — | 39 | ~1891 |
| Annie Mullen | Spouse | — | 39 | ~1891 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 4
Baltimore, Maryland · implied b. ~1926 — 5 household members
| Surname | Mullen |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| 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
Daughter, age 15
Baltimore-City-County, Maryland · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullin |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Class of Worker | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Maryland |
| 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 Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mullen
Daughter · 1930 · age 4 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Regina Mullen
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mullen
Sibling · 1930 · 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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus853unit:0739)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy M | 17 | Daughter | — | Maryland |
| 2 | Bernadette R | 10 | Daughter | — | Maryland |
| 3 | Richard A | 20 | Nephew | Foot Repairer | Maryland |
| 4 | Joseph P Reynolds | 38 | Head | Plumbing Inspector | Maryland |
| 5 | Mary G Reynolds | 39 | Wife | — | Maryland |
| 6 | Isabella A Provitt | 81 | Head | — | Maryland |
| 7 | Ralph Provitt | 60 | Son | Cementer | Maryland |
| 8 | Clara Provitt | 48 | Daughter | Clerk | Maryland |
| 9 | Leo Provitt | 46 | Son | Fireman | Maryland |
| 10 | Viola Provitt | 44 | Daughter | — | Maryland |
| 11 | Edward J Nolan | 55 | Head | Laborer | Maryland |
| 12 | Delia Nolan | 59 | Wife | — | Maryland |
| 13 | Thomas Blakeney | 60 | Boarder | Laborer | Maryland |
| 14 | Hugh O'Connor | 48 | Head | Janitor | Ireland |
| 15 | Mary T O'Connor | 49 | Wife | — | Maryland |
| 16 | James B Casserly | 37 | Head | Electrician | Maryland |
| 17 | Annie M Casserly | 41 | Wife | — | Ireland |
| 18 | Michael A Memmel | 45 | Head | Foreman | Maryland |
| 19 | Annie Memmel | 41 | Wife | — | Maryland |
| 20 | Gertrude R Memmel | 23 | Daughter | Card Pusher | Maryland |
| 21 | Joseph J Memmel | 18 | Son | Clerk | Maryland |
| 22 | Edward J Memmel | 17 | Son | Clerk | Maryland |
| 23 | Eleanor M Memmel | 16 | Daughter | — | Maryland |
| 24 | Marie I Memmel | 13 | Daughter | — | Maryland |
| 25 | Madeline R Memmel | 11 | Daughter | — | Maryland |
| 26 | James E Memmel | 8 | Son | — | Maryland |
| 27 | Albert L Memmel | 5 | Son | — | Maryland |
| 28 | Eileen E Memmel | 3 | Daughter | — | Maryland |
| 29 | William B Mullen | 39 | Head | Proprietor | Maryland |
| 30 | Annie C Mullen | 39 | Wife | — | Maryland |
| 31 | Margaret M Mullen | 12 | Daughter | — | Maryland |
| 32 | Regina M Mullen | 12 | Daughter | — | Maryland |
| 33 | Mary E Mullen THIS PERSON | 4 | Daughter | — | Maryland |
| 34 | William E Doney | 53 | Head | Foreman | Maryland |
| 35 | Emma Doney | 47 | Wife | — | Maryland |
| 36 | Ella A Rainey | 54 | Head | — | Maryland |
| 37 | Catherine M Rainey | 52 | Sister | Domestic | Maryland |
| 38 | Nelson E Kroedel | 26 | Head | Conductor | Maryland |
| 39 | Florence M Kroedel | 23 | Wife | — | Maryland |
| 40 | Jane E Kroedel | 2 | Daughter | — | Maryland |
| 41 | Samuel J Taylor | 42 | Head | Night Watchman | Maryland |
| 42 | Rose E Taylor | 50 | Wife | — | Maryland |
| 43 | Edward Rapp | 41 | Head | Clerk | Pennsylvania |
| 44 | Margaret A Rapp | 41 | Wife | — | Maryland |
| 45 | Edward M Rapp | 11 | Son | — | Maryland |
| 46 | Dana P Whittemore | 56 | Boarder | Clerk | New Hampshire |
| 47 | Edward J Hayes | 46 | Head | Laborer | Maryland |
| 48 | Margaret M Hayes | 50 | Wife | — | Ireland |
| 49 | Martin J Hayes | 21 | Son | Laborer | Maryland |
| 50 | Francis M Hayes | 19 | Son | Bundle Wrapper | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)