WM
William Mcgrath — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Essex, Massachusetts
Our Model Tree links this William Mcgrath across the 1910 and 1920 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1896), then head of a 8-person household.
Age 24
b. ~1896
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Essex, Massachusetts |
| Surname | McGrath |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Locker |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Locker |
| Township / Ward | Lawrence City |
| Est. Birth Year | ~1896 |
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 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Richard Mcgrath | Head | — | 55 | ~1865 |
| Rose Mcgrath | Daughter | — | 22 | ~1898 |
| John Mcgrath | Son | — | 15 | ~1905 |
| Helen Mcgrath | Daughter | — | 16 | ~1904 |
| Catherine Mcgrath | Daughter | — | 21 | ~1899 |
| Julia Mcgrath | Spouse | — | 53 | ~1867 |
| William Mcgrath | Son | — | 24 | ~1896 |
| Isabella Mcgrath | Daughter | — | 12 | ~1908 |
Census Appearances
1910
Essex, Massachusetts
Son, age 14
Essex, Massachusetts · implied b. ~1896 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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 |
1920
Essex, Massachusetts
Son, age 24
Essex, Massachusetts · implied b. ~1896 — 8 household members
| Surname | McGrath |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Locker |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 William Mcgrath across 2 US Census years (1910 and 1920) in Essex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Mcgrath
Son · 1920 · age 24 · b. ~1896 · Massachusetts
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Sibling
Helen Mcgrath
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabella Mcgrath
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcgrath
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcgrath
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mcgrath
Sibling · 1920 · age 22
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 — Essex, Massachusetts
Open full size
1920 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu692unit:0026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles B Mccarthy | 24 | Son | Clerk | Massachusetts |
| 2 | Adeline M Mccarthy | 23 | Daughter | — | Massachusetts |
| 3 | John A Mccarthy | 21 | Son | Pin Setter | Massachusetts |
| 4 | Mary V Mccarthy | 20 | Daughter | Stitcher | Massachusetts |
| 5 | Florence C Mccarthy | 19 | Son | Pin Setter | Massachusetts |
| 6 | Edward J Mccarthy | 16 | Son | Beamer | Massachusetts |
| 7 | Frank L Mccarthy | 15 | Son | — | Massachusetts |
| 8 | Helen Mccarthy | 12 | Daughter | — | Massachusetts |
| 9 | Irene Mccarthy | 10 | Daughter | — | Massachusetts |
| 10 | Joseph Mccarthy | 9 | Son | — | Massachusetts |
| 11 | Leo Mccarthy | 4 | Son | — | Massachusetts |
| 12 | Richard Mcgrath | 55 | Head | — | Massachusetts |
| 13 | Julia Mcgrath | 53 | Wife | — | Massachusetts |
| 14 | William F Mcgrath THIS PERSON | 24 | Son | Locker | Massachusetts |
| 15 | Rose Mcgrath | 22 | Daughter | Mender | Massachusetts |
| 16 | Catherine Mcgrath | 21 | Daughter | Locker | Massachusetts |
| 17 | Helen Mcgrath | 16 | Daughter | Drawer | Massachusetts |
| 18 | John Mcgrath | 15 | Son | Pin Boy | Massachusetts |
| 19 | Isabella Mcgrath | 12 | Daughter | — | Massachusetts |
| 20 | John Connor | 55 | Head | Laborer | Massachusetts |
| 21 | David Connor | 49 | Brother | Laborer | Massachusetts |
| 22 | Nellie Connor | 47 | Sister | Specker | Massachusetts |
| 23 | Mary Connor | 44 | Sister | — | Massachusetts |
| 24 | William F Leary | 42 | Head | Weaver | Rhode Island |
| 25 | Joanna Leary | 50 | Wife | Spooler | Massachusetts |
| 26 | Charles Leary | 9 | Son | — | Rhode Island |
| 27 | Sarah M Ready | 54 | Head | Burler | Pennsylvania |
| 28 | William Singel | 26 | Head | Weaver | Massachusetts |
| 29 | Edith Singel | 25 | Wife | — | Canada |
| 30 | William E Singel | 3 | Son | — | Massachusetts |
| 31 | Juanita L Singel | 1 | Daughter | — | Massachusetts |
| 32 | Leo C Nolan | 27 | Lodger | Weaver | Vermont |
| 33 | Everett A Hinman | 32 | Head | Machinist | Massachusetts |
| 34 | Nina B Hinman | 31 | Wife | Mender | Massachusetts |
| 35 | Everett A Jr Hinman | 6 | Son | — | Massachusetts |
| 36 | Harry B Smith | 66 | Lodger | — | Massachusetts |
| 37 | John J Minahan | 38 | Head | Fireman | Ireland |
| 38 | Mary G Minahan | 35 | Wife | — | Ireland |
| 39 | Helen V Minahan | 13 | Daughter | — | Massachusetts |
| 40 | Mary Minahan | 10 | Daughter | — | Massachusetts |
| 41 | Gertrude M Minahan | 8 | Daughter | — | Massachusetts |
| 42 | John J Minahan | 7 | Son | — | Massachusetts |
| 43 | Julia F Minahan | 5 | Daughter | — | Massachusetts |
| 44 | James Concannon | 35 | Head | Fireman | Ireland |
| 45 | Nellie Concannon | 32 | Wife | — | Ireland |
| 46 | Peter Concannon | 5 | Son | — | Massachusetts |
| 47 | Mary Concannon | 4 | Daughter | — | Massachusetts |
| 48 | James J Jr Concannon | 2 | Son | — | Massachusetts |
| 49 | James Mahan | 34 | Head | — | Ireland |
| 50 | Mary Mahan | 32 | Wife | — | Ireland |
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)