JM
James Mullen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this James Mullen across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 10-person household.
Age 8
b. ~1912
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Mullen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1912 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Louise Mullen | Daughter | — | 20 | ~1900 |
| Sarah Mullen | Spouse | — | 44 | ~1876 |
| Margaret Mullen | Daughter | — | 14 | ~1906 |
| William Mullen | Head | — | 49 | ~1871 |
| William Mullen | Son | — | 19 | ~1901 |
| Florence Mullen | Daughter | — | 10 | ~1910 |
| Mary Mullen | Daughter | — | 5 | ~1915 |
| James Mullen | Son | — | 8 | ~1912 |
| George Mullen | Son | — | 16 | ~1904 |
| Ethel Mullen | Daughter | — | 12 | ~1908 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 8
Middlesex, Massachusetts · implied b. ~1912 — 10 household members
| Surname | Mullen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 18
Middlesex, Massachusetts · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 James Mullen across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
James Mullen
Son · 1920 · age 8 · b. ~1912 · Massachusetts
★ You are viewing this record
Sibling
Ethel Mullen
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mullen
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Mullen
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Mullen
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mullen
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mullen
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Mullen
Sibling · 1920 · age 10
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
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu717unit:0772)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Lynch | 48 | Wife | — | Ireland |
| 2 | Daniel M. O'Connell | 32 | Head | Stableman | New York |
| 3 | Irene O'Connell | 31 | Wife | Wireman | Massachusetts |
| 4 | Arthur G. O'Connell | 10 | Son | — | Massachusetts |
| 5 | Daniel O'Connell | 9 | Son | — | Massachusetts |
| 6 | Francis O'Connell | 7 | Son | — | Massachusetts |
| 7 | Vincent O'Connell | 5 | Son | — | Massachusetts |
| 8 | Richard O'Connell | 3 | Son | — | Massachusetts |
| 9 | Eugene O'Connell | 1 | Son | — | Massachusetts |
| 10 | John J. Healy | 23 | Brother-in-law | Teamster | Massachusetts |
| 11 | Mary Sullivan | 49 | Head | Housework | Ireland |
| 12 | Margaret M. Sullivan | 18 | Boarder | Chocolate Dipper | Massachusetts |
| 13 | Daniel F. Coughlin | 47 | Head | Teamster | Ireland |
| 14 | Mary B. Coughlin | 49 | Wife | — | Massachusetts |
| 15 | Daniel F. Coughlin | 21 | Son | Time Keeper | Massachusetts |
| 16 | John J. Coughlin | 16 | Son | Errand Boy | Massachusetts |
| 17 | Cornelius G. Coughlin | 14 | Son | — | Massachusetts |
| 18 | Elizabeth R. Coughlin | 11 | Daughter | — | Massachusetts |
| 19 | James Coughlin | 10 | Son | — | Massachusetts |
| 20 | James H. Boyle | 41 | Head | Stationary Fireman | Massachusetts |
| 21 | Helen H. Boyle | 38 | Wife | — | Massachusetts |
| 22 | Mary Boyle | 13 | Daughter | — | Massachusetts |
| 23 | Ella Boyle | 11 | Daughter | — | Massachusetts |
| 24 | James Boyle | 9 | Son | — | Massachusetts |
| 25 | Helen Boyle | 7 | Daughter | — | Massachusetts |
| 26 | George J. Healey | 22 | Brother-in-law | Laborer | Massachusetts |
| 27 | Charles M. Bolan | 50 | Head | — | Canada |
| 28 | Elizabeth Bolan | 66 | Wife | — | Canada |
| 29 | Nellie Bolan | 40 | Daughter | Weigher | Canada |
| 30 | Susie Bolan | 32 | Daughter | — | Massachusetts |
| 31 | William J. Mullen | 49 | Head | Cooper | Massachusetts |
| 32 | Sarah J. Mullen | 44 | Wife | — | Massachusetts |
| 33 | Louise A. Mullen | 20 | Daughter | Box Maker | Massachusetts |
| 34 | William F. Mullen | 19 | Son | Office Clerk | Massachusetts |
| 35 | George L. Mullen | 16 | Son | Office Clerk | Massachusetts |
| 36 | Margaret T. Mullen | 14 | Daughter | Box Maker | Massachusetts |
| 37 | Ethel Mullen | 12 | Daughter | — | Massachusetts |
| 38 | Florence Mullen | 10 | Daughter | — | Massachusetts |
| 39 | James Mullen THIS PERSON | 8 | Son | — | Massachusetts |
| 40 | Mary Mullen | 5 | Daughter | — | Massachusetts |
| 41 | John J. Cummings | 35 | Head | Teamster | New York |
| 42 | Mary E. Cummings | 37 | Wife | — | Massachusetts |
| 43 | Albert Cummings | 12 | Son | — | Massachusetts |
| 44 | Helen R. Cummings | 5 | Daughter | — | Massachusetts |
| 45 | Michael Bensin | 59 | Head | Laborer | New York |
| 46 | Annie E. Bensin | 53 | Wife | Washerwoman | Ireland |
| 47 | Edward M. Bensin | 15 | Son | — | Massachusetts |
| 48 | William F. O'Hara | 41 | Head | Laborer | Massachusetts |
| 49 | Francis O'Hara | 14 | Son | Binding Machine | Massachusetts |
| 50 | Marie O'Hara | 11 | Daughter | — | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)