WM
William Mcgrath — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this William Mcgrath across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1893), then head of a 8-person household.
Age 27
b. ~1893
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | McGrath |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Machinist |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Machinist |
| Township / Ward | Swissvale Borough |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Harry Mcgrath | Son | — | 16 | ~1904 |
| Nora Mcgrath | Spouse | — | 53 | ~1867 |
| William Mcgrath | Son | — | 27 | ~1893 |
| Marie Mcgrath | Daughter | — | 24 | ~1896 |
| Frank Mcgrath | Head | — | 57 | ~1863 |
| Thomas Mcgrath | Son | — | 18 | ~1902 |
| Frank Mcgrath | Son | — | 30 | ~1890 |
| John Mcgrath | Son | — | 28 | ~1892 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 18
Allegheny, Pennsylvania · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Pattern maker |
| Industry | Shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Allegheny, Pennsylvania
Son, age 27
Allegheny, Pennsylvania · implied b. ~1893 — 8 household members
| Surname | McGrath |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Machinist |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
William Mcgrath
Son · 1920 · age 27 · b. ~1893 · Pennsylvania
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Sibling
Frank Mcgrath
Sibling · 1920 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Mcgrath
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Mcgrath
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Mcgrath
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcgrath
Sibling · 1920 · age 28
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 — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1529unit:0648)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Cuskery | 33 | Head | Laborer | Pennsylvania |
| 2 | Hazel K. Cuskery | 27 | Wife | — | Pennsylvania |
| 3 | Walter J. Cuskery | 6 | Son | — | Pennsylvania |
| 4 | Lillian S. Cuskery | 2 | Daughter | — | Pennsylvania |
| 5 | George T. Clark | 48 | Head | Clerk | Pennsylvania |
| 6 | Mary A. Clark | 43 | Wife | — | Pennsylvania |
| 7 | Ruth N. Clark | 25 | Daughter | — | Pennsylvania |
| 8 | Lewis L. Stennick | 51 | Head | Undertaker | New York |
| 9 | Blanche A. Stennick | 51 | Wife | — | England |
| 10 | Vernon Beatrice Stennick | 23 | Daughter | — | Pennsylvania |
| 11 | Robert D. Tufts | 41 | Head | Barber | New York |
| 12 | Sylvia B. Tufts | 31 | Wife | — | Pennsylvania |
| 13 | Jessie E. Tufts | 15 | Daughter | — | New York |
| 14 | John E. Tufts | 12 | Son | — | Pennsylvania |
| 15 | Frank Mcgrath | 57 | Head | Foreman | England |
| 16 | Nora Mcgrath | 53 | Wife | — | England |
| 17 | Frank Mcgrath | 30 | Son | Machinist | England |
| 18 | John S. Mcgrath | 28 | Son | Machinist | Massachusetts |
| 19 | William J. Mcgrath THIS PERSON | 27 | Son | Machinist | Massachusetts |
| 20 | Marie M. Mcgrath | 24 | Daughter | Teacher | Massachusetts |
| 21 | Thomas J. Mcgrath | 18 | Son | — | Massachusetts |
| 22 | Harry J. Mcgrath | 16 | Son | — | Pennsylvania |
| 23 | George S. Moyer | 40 | Head | Dentist | Pennsylvania |
| 24 | Sarah M. Moyer | 38 | Wife | — | Pennsylvania |
| 25 | Beatrice P. Moyer | 16 | Daughter | — | Pennsylvania |
| 26 | Martha M. Moyer | 10 | Daughter | — | Pennsylvania |
| 27 | Marion R. Moyer | 10 | Daughter | — | Pennsylvania |
| 28 | Harmon D. Matthew | 54 | Head | Conductor | Ohio |
| 29 | Margaret L. Matthew | 47 | Wife | — | Ohio |
| 30 | Lloyd M. Morrow | 31 | Son-in-law | Cashier | Pennsylvania |
| 31 | Bessie L. Morrow | 32 | Daughter | — | Ohio |
| 32 | Philip W. Morgan | 25 | Son-in-law | Conductor | West Virginia |
| 33 | Josephine Morgan | 27 | Daughter | — | Ohio |
| 34 | Earl E. Humphrey | 25 | Head | Machine Hand | Pennsylvania |
| 35 | Viola M. Humphrey | 23 | Wife | — | Pennsylvania |
| 36 | Robert E. Humphrey | 2 | Son | — | Pennsylvania |
| 37 | Mary Streger | 47 | Head | Laborer | Germany |
| 38 | Rudolph W. Streger | 21 | Son | Laborer | Pennsylvania |
| 39 | Harry F. Smith | 20 | Boarder | Millwright | Pennsylvania |
| 40 | Robert A. Russell | 21 | Boarder | Millwright | Pennsylvania |
| 41 | John Ristalic | 24 | Boarder | Laborer | Pennsylvania |
| 42 | Robert Wails | 38 | Boarder | Laborer | Pennsylvania |
| 43 | Emma F. Doras | 53 | Head | Mistress | Pennsylvania |
| 44 | Raymond R. Doras | 18 | Son | Pipe Fitter | Pennsylvania |
| 45 | Helen G. Doras | 16 | Son | — | Pennsylvania |
| 46 | Cassandie G. Doras | 14 | Son | — | Pennsylvania |
| 47 | Harvey Conlon | 35 | Boarder | Foreman | Pennsylvania |
| 48 | Joseph Wright | 35 | Boarder | Foreman | Pennsylvania |
| 49 | Clifford Trout | 31 | Boarder | Plasterer | Pennsylvania |
| 50 | Ernest Stuart | 25 | Boarder | Laborer | Pennsylvania |
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)