MC
Mary Coughlin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Alameda, California
Our Model Tree links this Mary Coughlin across the 1910 and 1920 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 8-person household.
Age 40
b. ~1880
Female
Spouse
Born: Pennsylvania
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Alameda, California |
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1880 |
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 |
|---|---|---|---|---|
| Mary Coughlin | Spouse | — | 40 | ~1880 |
| Margaret Coughlin | Daughter | — | 14 | ~1906 |
| Monica Coughlin | Daughter | — | 10 | ~1910 |
| Donald Coughlin | Son | — | 4 | ~1916 |
| Walter Reeves | Other | — | 29 | ~1891 |
| Thomas Coughlin | Son | — | 7 | ~1913 |
| James Coughlin | Head | — | 43 | ~1877 |
| Edith Reeves | Other | — | 22 | ~1898 |
Census Appearances
1910
Alameda, California
Spouse, age 31
Alameda, California · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coughlin |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 12 |
| Children Born | 3 |
| Children Living | 3 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Alameda, California
Spouse, age 40
Alameda, California · implied b. ~1880 — 8 household members
| Surname | Coughlin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| 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 Coughlin across 2 US Census years (1910 and 1920) in Alameda, California, using XGBoost record linkage.
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This person
Anchor record
Mary Coughlin
Spouse · 1920 · age 40 · b. ~1880 · California
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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 — Alameda, California
Open full size
1920 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu088unit:1055)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry W. Silva | 17 | Son | Painter | California |
| 2 | Hazel Silva | 25 | Head | — | California |
| 3 | Burton E. Silva | 5 | Son | — | California |
| 4 | Clara Townsend | 23 | Sister | — | California |
| 5 | Lester Akins | 31 | Head | Laborer | California |
| 6 | Ava Akins | 30 | Wife | — | California |
| 7 | Byron Akins | 8 | Son | — | California |
| 8 | Hans Aaron | 28 | Head | Laborer | United States |
| 9 | Florence Aaron | 23 | Wife | — | California |
| 10 | Thomas R. Aaron | 2 | Son | — | California |
| 11 | Carmela Caracciolo | 50 | Head | Tailor | Italy |
| 12 | Joseph Caracciolo | 25 | Son | Salesman | Massachusetts |
| 13 | Anna Caracciolo | 18 | Daughter | Saleslady | Massachusetts |
| 14 | Biagio Caracciolo | 15 | Son | — | Colorado |
| 15 | William Hessler | 37 | Head | Proprietor | California |
| 16 | Elizabeth J. Hessler | 32 | Wife | — | California |
| 17 | Fred G. Hensel | 43 | Head | Repairer | Wurttemberg |
| 18 | Christine R. Hensel | 36 | Wife | — | Wurttemberg |
| 19 | Fred M. J. Hensel | 17 | Son | — | California |
| 20 | Jonas Smist | 36 | Head | Carpenter | Sweden |
| 21 | Helga S. Smist | 27 | Wife | — | Sweden |
| 22 | Allen Robert A. Smist | 39 | Boarder | Plumber | Sweden |
| 23 | Carl Matson | 47 | Head | Master Mariner | California |
| 24 | Isabel Matson | 54 | Wife | — | California |
| 25 | Noma V. Matson | 20 | Daughter | — | California |
| 26 | John J. Foley | 46 | Head | Mechanic | California |
| 27 | Nellie Foley | 46 | Wife | — | Ireland |
| 28 | Harry W. Lewis | 57 | Head | Optometrist | Illinois |
| 29 | Julia C. Lewis | 50 | Wife | — | Mexico |
| 30 | Maria T. Lewis | 12 | Daughter | — | California |
| 31 | Charles M. Bailey | 41 | Head | Proprietor | California |
| 32 | Maude D. Bailey | 40 | Wife | — | California |
| 33 | Wayne B. Hardy | 30 | Head | Carpenter | Ohio |
| 34 | Gochie V. Hardy | 30 | Wife | — | Kansas |
| 35 | Thelma D. Hardy | 2 | Daughter | — | California |
| 36 | A. F. Sherwood | 50 | Roomer | Dressmaker | Canada |
| 37 | Thomas S. Hertweck | 55 | Head | Wholesaler | Wisconsin |
| 38 | Mary Hertweck | 50 | Wife | — | California |
| 39 | James Coughlin | 43 | Head | Accountant | Kansas |
| 40 | Mary Coughlin THIS PERSON | 40 | Wife | — | Pennsylvania |
| 41 | Margaret Coughlin | 14 | Daughter | — | California |
| 42 | Monica Coughlin | 10 | Daughter | — | California |
| 43 | Thomas Coughlin | 7 | Son | — | California |
| 44 | Donald Coughlin | 4 | Son | — | California |
| 45 | Edith Reeves | 22 | Boarder | — | England |
| 46 | Walter Reeves | 29 | Boarder | Telegrapher | Australia |
| 47 | Louise R. Billings | 79 | Head | — | New York |
| 48 | Ellington Billings | 39 | Son | Clerk | California |
| 49 | Elvin Copeland | 40 | Head | Housekeeper | Germany |
| 50 | Elsie Copeland | 38 | Wife | Wine Maker | Germany |
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)