WM
William Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Passaic-County, New Jersey
Our Model Tree links this William Mullen across the 1930 and 1940 US Censuses in Passaic-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Passaic-County, New Jersey |
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Little Falls Township |
| 1935 Residence (County) | Passaic |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Little Falls Township |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Jackie Mullen | Son | — | 16 | ~1924 |
| Muriel Mullen | Daughter | — | 15 | ~1925 |
| William Mullen | Son | — | 14 | ~1926 |
| Joseph Mullen | Son | — | 21 | ~1919 |
| Joseph Mullen | Head | — | 40 | ~1900 |
| Rose Mullen | Spouse | — | 37 | ~1903 |
| Catherine Mullen | Daughter | — | 18 | ~1922 |
| Dorothy Mullen | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Passaic, New …
Son, age 3
Passaic, New Jersey · implied b. ~1927 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Passaic-County, New …
Son, age 14
Passaic-County, New Jersey · implied b. ~1926 — 8 household members
| Surname | Mullen |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Little Falls Township |
| 1935 Residence (County) | Passaic |
| Highest Grade | G 7 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 William Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mullen
Son · 1940 · age 14 · b. ~1926 · New Jersey
★ You are viewing this record
Sibling
Dorothy Mullen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jackie Mullen
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mullen
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mullen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Muriel Mullen
Sibling · 1940 · age 15
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 — Passaic-County, New Jersey
Open full size
1940 US Federal Census — Passaic-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02377-00105)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nora G Danguis | 34 | Wife | — | Mass |
| 2 | Gerald A Danguis | 5 | Son | — | New Jersey |
| 3 | August W Thomas | 31 | Head | Truck Driver | New Jersey |
| 4 | Faye V Thomas | 29 | Wife | — | New Jersey |
| 5 | Bradley W Thomas | 2 | Son | — | New Jersey |
| 6 | Paul B Whelan | 46 | Head | Metal Finisher | New Jersey |
| 7 | Minnie E Whelan | 40 | Wife | — | New Jersey |
| 8 | Marion Whelan | 17 | Daughter | New Worker | New Jersey |
| 9 | Virginia Whelan | 13 | Daughter | — | New Jersey |
| 10 | Paul Whelan | 13 | Son | — | New Jersey |
| 11 | Irene Whelan | 11 | Daughter | — | New Jersey |
| 12 | William Zummerfelt | 53 | Head | Blacksmith | Holland |
| 13 | Anna W Zummerfelt | 53 | Wife | — | Holland |
| 14 | Albert J W Rens | 29 | Head | Textile Engraver | New Jersey |
| 15 | Gail Rens | 26 | Wife | — | New Jersey |
| 16 | Albert E Rens | 7 | Son | — | New Jersey |
| 17 | Gail Rens | 5 | Daughter | — | New Jersey |
| 18 | Bernice Rens | 3 | Daughter | — | New Jersey |
| 19 | August Wirths | 41 | Head | Brakeman | New Jersey |
| 20 | Anna E Wirths | 39 | Wife | — | New York |
| 21 | Evelyn M Wirths | 14 | Daughter | — | New Jersey |
| 22 | August R Wirths | 13 | Son | — | New Jersey |
| 23 | Janet L Wirths | 5 | Daughter | — | New Jersey |
| 24 | Joseph F Penny | 51 | Head | Floor Man | New York |
| 25 | Annie V Penny | 53 | Wife | — | New York |
| 26 | Paul O Penny | 29 | Son | Floor Man | Connecticut |
| 27 | Thomas Brunati | 27 | Head | Steer Man | New Jersey |
| 28 | Sophie E Brunati | 18 | Wife | — | New Jersey |
| 29 | Ronald J Brunati | 2 | Son | — | New Jersey |
| 30 | Carole M Brunati | 0 | Daughter | — | New Jersey |
| 31 | Ella Brunati | 56 | Mother | — | New Jersey |
| 32 | Joseph Mullen | 40 | Head | Roofer | New Jersey |
| 33 | Rose Mullen | 37 | Wife | — | New Jersey |
| 34 | Joseph Jr Mullen | 21 | Son | Knitter | New Jersey |
| 35 | Dorothy J Mullen | 20 | Daughter | Comer | New Jersey |
| 36 | Catherine Mullen | 18 | Daughter | House Work | New Jersey |
| 37 | Jackie Mullen | 16 | Son | Delivery Boy | New Jersey |
| 38 | Muriel Mullen | 15 | Daughter | — | New Jersey |
| 39 | William Mullen THIS PERSON | 14 | Son | — | New Jersey |
| 40 | George F Deary | 42 | Head | Meter Reading | New Jersey |
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)