WM
William Mckay — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this William Mckay across the 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1895), then head of a 7-person household.
Age 25
b. ~1895
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | McKay |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Helper |
| Industry | Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1895 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Harry Mckay | Son | — | 21 | ~1899 |
| Charles Mckay | Head | — | 59 | ~1861 |
| Sadie Mckay | Daughter | — | 14 | ~1906 |
| Mary Mckay | Daughter | — | 19 | ~1901 |
| Mary Mckay | Spouse | — | 54 | ~1866 |
| Michael Mckay | Son | — | 17 | ~1903 |
| William Mckay | Son | — | 25 | ~1895 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 16
Philadelphia, Pennsylvania · implied b. ~1894 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKay |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Helper |
| Industry | Boiler Shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 25
Philadelphia, Pennsylvania · implied b. ~1895 — 7 household members
| Surname | McKay |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Helper |
| Industry | Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Mckay across 2 US Census years (1910 and 1920) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
William Mckay
Son · 1920 · age 25 · b. ~1895 · Pennsylvania
★ You are viewing this record
Sibling
Sadie Mckay
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Mckay
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mckay
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Mckay
Sibling · 1920 · age 21
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 — Philadelphia, Pennsylvania
Open full size
1920 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1635unit:0668)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl Hill | 21 | Cousin | Laborer | Delaware |
| 2 | Edward Litton | 30 | Head | Beltmaker | Pennsylvania |
| 3 | Katherine Litton | 28 | Wife | — | Pa |
| 4 | William Litton | 8 | Son | — | Pa |
| 5 | Edward Litton | 6 | Son | — | Pa |
| 6 | Ethel Litton | 4 | Daughter | — | Pa |
| 7 | Janis Mecsei | 42 | Head | Machinist | Hungary |
| 8 | Mary Mecsei | 38 | Wife | — | Hungary |
| 9 | Ann Mecsei | 15 | Daughter | — | Pa |
| 10 | Joseph Mecsei | 13 | Son | — | Pa |
| 11 | Margrett Mecsei | 12 | Daughter | — | Pa |
| 12 | Arthur Potter | 36 | Head | Teamster | Pa |
| 13 | Mary Potter | 38 | Wife | — | Pa |
| 14 | Bertha Potter | 14 | Daughter | — | Pa |
| 15 | Arthur Potter | 12 | Son | — | Pa |
| 16 | Margerette Potter | 11 | Daughter | — | Pa |
| 17 | Mary Potter | 3 | Daughter | — | Pa |
| 18 | Herbert Potter | 1 | Son | — | Pa |
| 19 | Charles Mckay | 59 | Head | Helper | Ireland |
| 20 | Mary Mckay | 54 | Wife | — | Ireland |
| 21 | William Mckay THIS PERSON | 25 | Son | Helper | Pennsylvania |
| 22 | Harry H. Mckay | 21 | Son | Plumber | Pa |
| 23 | Mary J. Mckay | 19 | Daughter | Office | Pa |
| 24 | Michael A. Mckay | 17 | Son | Helper | Pa |
| 25 | Sadie Mckay | 14 | Daughter | — | Pa |
| 26 | Edward Faunce | 64 | Head | Repairer | Pa |
| 27 | Clara V. Faunce | 57 | Wife | — | Pa |
| 28 | Grant S. Lawrence | 20 | Nephew | Plumber | Pa |
| 29 | Frank J. Lawrence | 18 | Nephew | Helper | Pa |
| 30 | George Kaecher | 18 | Boarder | Helper | Pa |
| 31 | Rose Dempsey | 31 | Head | Weaving | Pa |
| 32 | Ann Dempsey | 15 | Son | — | Pa |
| 33 | Elizabeth Dempsey | 10 | Daughter | — | Pa |
| 34 | Katherine Dempsey | 5 | Daughter | — | Pa |
| 35 | Thomas Dempsey | 1 | Son | — | Pa |
| 36 | Thomas White | 33 | Son-in-law | Leading Man | Pa |
| 37 | Marie White | 17 | Daughter | — | Pa |
| 38 | Joseph Hanback | 50 | Head | Butcher | Hungary |
| 39 | Annie Hanback | 45 | Wife | — | Hungary |
| 40 | Joseph Hanback | 5 | Son | — | Pa |
| 41 | James Brown | 36 | Head | Machinist | Virginia |
| 42 | Sarah Brown | 34 | Wife | — | Pa |
| 43 | Caroline Myers | 10 | Step-daughter | — | Pa |
| 44 | Maude Myers | 7 | Step-daughter | — | Pa |
| 45 | James Brown | 5 | Son | — | Pa |
| 46 | Virginia Brown | 2 | Daughter | — | Pa |
| 47 | Margaret Loffer | 39 | Head | Helper | Pa |
| 48 | Marie Loffer | 16 | Daughter | Folder | Pa |
| 49 | Anna Loffer | 15 | Daughter | Helper | Pa |
| 50 | William Loffer | 14 | Son | Helper | Pa |
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)