MC
Mary Conley — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Conley across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 8-person household.
Age 16
b. ~1904
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Conley |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1904 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| John Conley | Head | — | 44 | ~1876 |
| Mary Conley | Daughter | — | 16 | ~1904 |
| Elizabeth Conley | Spouse | — | 48 | ~1872 |
| William Conley | Son | — | 12 | ~1908 |
| Ambrose Conley | Son | — | 20 | ~1900 |
| John Conley | Son | — | 15 | ~1905 |
| Elizabeth Conley | Daughter | — | 18 | ~1902 |
| Helen Conley | Daughter | — | 19 | ~1901 |
Census Appearances
1910
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Comley |
| Given Name | Marjorie M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 8 household members
| Surname | Conley |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| 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 Mary Conley across 2 US Census years (1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Conley
Daughter · 1920 · age 16 · b. ~1904 · Pennsylvania
★ You are viewing this record
Sibling
Elizabeth Conley
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ambrose Conley
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Conley
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Conley
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Conley
Sibling · 1920 · age 12
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:1920:14thcensusofpopu1520unit:0667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | C. Paul Wassel | 13 | — | None | Pennsylvania |
| 2 | Abina Wassel | 10 | — | None | Pennsylvania |
| 3 | Alice Wassel | 8 | — | None | Pennsylvania |
| 4 | Katherine Wassel | 2 | — | None | Pennsylvania |
| 5 | Alfred C. Wassel | 2 | — | None | Pennsylvania |
| 6 | Margaret M. Haig | 54 | head | None | West Virginia |
| 7 | Alice H. Gallagher | 56 | cousin | None | Ohio |
| 8 | Mary L. Mclanahan | 75 | roomer | None | Ohio |
| 9 | Mary E. Lippincott | 74 | roomer | None | Ohio |
| 10 | Sarah B. Moore | 60 | roomer | None | Pennsylvania |
| 11 | William L. Baker | 31 | head | Auditor | New York |
| 12 | Irene B. Baker | 32 | wife | None | New York |
| 13 | Dorothy M. Baker | 11 | daughter | None | New York |
| 14 | Marshall H. Baker | 6 | son | None | New York |
| 15 | Clarence R. Dietrich | 36 | head | Accountant | Pennsylvania |
| 16 | Rosella Dietrich | 36 | wife | None | Pennsylvania |
| 17 | John X. Taylor | 34 | head | Teacher | New York |
| 18 | Helen R. Taylor | 30 | wife | None | New York |
| 19 | Hiram M. Perrin | 23 | head | Electrician | Missouri |
| 20 | James Perrin | 69 | father | None | New Jersey |
| 21 | Love E. Perrin | 63 | mother | None | Illinois |
| 22 | Harry N. Niehoff | 30 | head | Agent | Pennsylvania |
| 23 | Mary K. Niehoff | 28 | wife | None | Pennsylvania |
| 24 | Mary R. Niehoff | 1 | daughter | None | Pennsylvania |
| 25 | Frank F. Carter | 39 | head | Manager | Ohio |
| 26 | Irma M. Carter | 34 | wife | None | Dist. of Columbia |
| 27 | Harvey S. King | 12 | step-son | None | Dist. of Columbia |
| 28 | Samuel R. Gallagher | 42 | head | Contractor | Kentucky |
| 29 | Lee Gallagher | 42 | wife | None | Louisiana |
| 30 | Mary E. Dayarman | 62 | head | None | Pennsylvania |
| 31 | Haven Dayarman | 24 | daughter | Stenographer | Arkansas |
| 32 | John T. Taylor | 49 | head | Instructor | England |
| 33 | Sophia Q. Taylor | 40 | wife | None | Virginia |
| 34 | Harvey R. Taylor | 22 | son | None | Pennsylvania |
| 35 | Frances H. Taylor | 15 | daughter | None | Pennsylvania |
| 36 | Marjorie G. Taylor | 11 | daughter | None | Pennsylvania |
| 37 | Harriet T. Weekley | 20 | daughter | None | Pennsylvania |
| 38 | Lloyd E. Weekley | 23 | son-in-law | Dentist | Pennsylvania |
| 39 | Harriet T. Weekley | 1 | grand-daughter | None | Pennsylvania |
| 40 | Charles Taylor | 54 | brother | Foundryman | England |
| 41 | Charles R. Taylor | 9 | nephew | None | Pennsylvania |
| 42 | Emma S. Quigg | 64 | mother-in-law | None | England |
| 43 | John R. Conley | 44 | head | Contractor | Pennsylvania |
| 44 | Elizabeth Conley | 48 | wife | None | Pennsylvania |
| 45 | Ambrose Conley | 20 | son | Clerk | Pennsylvania |
| 46 | Helen S. Conley | 19 | daughter | None | Pennsylvania |
| 47 | Elizabeth M. Conley | 18 | daughter | None | Pennsylvania |
| 48 | Mary A. Conley THIS PERSON | 16 | daughter | None | Pennsylvania |
| 49 | John S. Conley | 15 | son | None | Pennsylvania |
| 50 | William T. Conley | 12 | son | None | Ohio |
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)