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Mary Laughlin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Laughlin across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 3-person household.
Age 37
b. ~1883
Female
Head
Born: Colorado
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Laughlin |
| Given Name | Mary R |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Rooms |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Housekeeper |
| Mother Tongue | English |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Rooms |
| Township / Ward | Mckeesport |
| Est. Birth Year | ~1883 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Knight | Other | — | 76 | ~1844 |
| Mary Laughlin | Head | — | 37 | ~1883 |
| Joseph Laughlin | Son | — | 14 | ~1906 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 37
Allegheny, Pennsylvania · implied b. ~1883 — 3 household members
| Surname | Laughlin |
| Given Name | Mary R |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Rooms |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Housekeeper |
| Mother Tongue | English |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Allegheny, Pennsylvania
Other, age 45
Allegheny, Pennsylvania · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | Mary X. |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 23 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $75 |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Allegheny-County, Pennsylvania
Other, age 58
Allegheny-County, Pennsylvania · implied b. ~1882 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | Mary K. |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Colorado |
| 1935 Residence (City) | S. Place |
| Occupation | Press design |
| Industry | dressmaking school |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Mary Laughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Laughlin
Head · 1920 · age 37 · b. ~1883 · Pennsylvania
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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:1920:14thcensusofpopu1514unit:0728)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert L Vaughn | 56 | Head | Paymaster | Pennsylvania |
| 52 | Matilda V Vaughn | 50 | Wife | — | Pennsylvania |
| 53 | Lois M Vaughn | 19 | Daughter | — | Pennsylvania |
| 54 | Leopold Joseph | 64 | Head | Owner | Germany |
| 55 | Lillian Joseph | 49 | Wife | — | Alsace Lorraine |
| 56 | Marian Joseph | 18 | Daughter | Stenographer | Pennsylvania |
| 57 | Fannie Schwartz | 52 | Sister | Housekeeper | Alsace Lorraine |
| 58 | Anna G Munns | 60 | Head | — | Pennsylvania |
| 59 | Robert G Munns | 21 | Son | Clerk | Pennsylvania |
| 60 | Morris R Munns | 70 | Brother | Clerk | Pennsylvania |
| 61 | Anna Snyder | 19 | Maid | Servant | West Virginia |
| 62 | Andrew Hunter | 50 | Head | Physician | Pennsylvania |
| 63 | Johanna C Hunter | 40 | Wife | — | Pennsylvania |
| 64 | Mary L Hunter | 8 | Daughter | — | Pennsylvania |
| 65 | Mae Brimfield | 49 | Maid | Servant | Pennsylvania |
| 66 | Amanda Fahoney | 75 | Head | — | Pennsylvania |
| 67 | John H Fahoney | 42 | Son | Auditor | Pennsylvania |
| 68 | David W Auld | 49 | Head | Broker | Illinois |
| 69 | Jane Auld | 45 | Wife | — | Pennsylvania |
| 70 | Eliza W Auld | 19 | Daughter | Teacher | Pennsylvania |
| 71 | Clarence Schuessler | 40 | Lodger | Principal | Pennsylvania |
| 72 | Mary R Laughlin THIS PERSON | 37 | Head | Rooms | Colorado |
| 73 | Joseph G Laughlin | 14 | Son | — | Pennsylvania |
| 74 | Elizabeth S Knight | 76 | Mother | — | England |
| 75 | George W Fogerty | 74 | Head | Toll Keeper | Pennsylvania |
| 76 | Catherine J Fogerty | 58 | Wife | — | Pennsylvania |
| 77 | Ruth Fogerty | 27 | Daughter | Stenographer | Pennsylvania |
| 78 | William G Fogerty | 18 | Son | Salesman | Pennsylvania |
| 79 | Mark H Jackson | 25 | Head | Mechanic | Pennsylvania |
| 80 | Mae G Jackson | 25 | Wife | — | Pennsylvania |
| 81 | Sherman Russard | 25 | Head | Roller | Pennsylvania |
| 82 | Clara Russard | 24 | Wife | — | Pennsylvania |
| 83 | William J Russard | 4 | Son | — | Indiana |
| 84 | Edna M Russard | 1 | Daughter | — | Indiana |
| 85 | Michael O'Neil | 53 | Head | Laborer | Ireland |
| 86 | Margaret O'Neil | 50 | Wife | — | Ireland |
| 87 | Catherine O'Neil | 23 | Daughter | Clerk | Pennsylvania |
| 88 | Alice O'Neil | 20 | Daughter | Clerk | Pennsylvania |
| 89 | John J O'Neil | 22 | Son | Laborer | Pennsylvania |
| 90 | Leo O'Neil | 15 | Son | — | Pennsylvania |
| 91 | Thomas Joyce | 35 | Head | Foreman | Ireland |
| 92 | Mary Joyce | 29 | Wife | — | Pennsylvania |
| 93 | Elizabeth Joyce | 11 | Daughter | — | Pennsylvania |
| 94 | John Halar | 37 | Head | Laborer | Hungary |
| 95 | Pauline Halar | 30 | Wife | — | Hungary |
| 96 | Ethel Halar | 9 | Daughter | — | Pennsylvania |
| 97 | Elmer Halar | 6 | Son | — | Pennsylvania |
| 98 | Julia Ladis | 60 | Mother | — | Hungary |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
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)