MW
Mary Welch — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mercer, New Jersey
Our Model Tree links this Mary Welch across the 1920, 1930 and 1940 US Censuses in Mercer, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 6-person household.
Age 51
b. ~1879
Female
Spouse
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, New Jersey |
| Surname | Welch |
| Given Name | Mary G |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 25 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1879 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Welch | Daughter | — | 12 | ~1918 |
| Mary Welch | Daughter | — | 14 | ~1916 |
| Aileen Welch | Daughter | — | 22 | ~1908 |
| Joseph Welch | Head | — | 46 | ~1884 |
| Joseph Welch | Son | — | 25 | ~1905 |
| Mary Welch | Spouse | — | 51 | ~1879 |
Census Appearances
1920
Mercer, New …
Spouse, age 40
Mercer, New Jersey · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Spouse, age 51
Mercer, New Jersey · implied b. ~1879 — 6 household members
| Surname | Welch |
| Given Name | Mary G |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 25 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
Spouse, age 66
Mercer-County, New Jersey · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Margaret A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Welch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Welch
Spouse · 1930 · age 51 · b. ~1879 · New Jersey
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Mercer, New Jersey
Open full size
1930 US Federal Census — Mercer, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1364:0426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Calvin R Trauger | 36 | Head | Steam Fitter | Penna |
| 2 | Edna M Trauger | 34 | Wife | — | Penna |
| 3 | Dorothy Trauger | 12 | Daughter | — | New Jersey |
| 4 | Calvin Jr Trauger | 8 | Son | — | New Jersey |
| 5 | Harry F Reece | 35 | Head | Manager | Penna |
| 6 | Hattie S Reece | 36 | Wife | — | Rhode Island |
| 7 | Bernard M Reece | 6 | Son | — | Penna |
| 8 | Hyman Salom | 54 | Head | Proprietor | Roumania |
| 9 | Esther Salom | 50 | Wife | — | Roumania |
| 10 | Ruth Salom | 13 | Daughter | — | New Jersey |
| 11 | John Sr Fenimore | 49 | Head | Clerk | Penna |
| 12 | Ruth Fenimore | 35 | Wife | — | Penna |
| 13 | John Jr Fenimore | 14 | Son | — | New Jersey |
| 14 | Edward Sheffer | 30 | Head | Salesman | Florida |
| 15 | Helen L Sheffer | 26 | Wife | — | New Jersey |
| 16 | Theodore C Souders | 41 | Head | Asst Director | New Jersey |
| 17 | Elizabeth Souders | 39 | Wife | — | New Jersey |
| 18 | Ruth Souders | 15 | Daughter | — | New Jersey |
| 19 | Joseph R Welch | 46 | Head | Instructor | Penna |
| 20 | Mary G Welch THIS PERSON | 51 | Wife | — | New Jersey |
| 21 | Joseph Jr Welch | 25 | Son | Architect | New Jersey |
| 22 | Aileen P Welch | 22 | Daughter | Assembler | New Jersey |
| 23 | Mary B Welch | 14 | Daughter | Office Clerk | Penna |
| 24 | Margaret F Welch | 12 | Daughter | — | New Jersey |
| 25 | Russell H Williamson | 42 | Head | Production Manager | New Jersey |
| 26 | Myrtle Williamson | 33 | Wife | — | New Jersey |
| 27 | Nancy E Williamson | 3 | Daughter | — | New Jersey |
| 28 | Andrew Lukach | 55 | Head | Plate Setter | Hungary |
| 29 | Teresa Lukach | 51 | Wife | — | Hungary |
| 30 | Anna Lukach | 26 | Daughter | Secretary | New Jersey |
| 31 | Theresa Lukach | 23 | Daughter | Secretary | New Jersey |
| 32 | Louis Lukach | 21 | Son | Cabinet Builder | New Jersey |
| 33 | James Lukach | 19 | Son | Machinist | New Jersey |
| 34 | David Fortleman | 40 | Head | Proprietor | Russia |
| 35 | Jennie Fortleman | 34 | Wife | — | Penna |
| 36 | William Fortleman | 12 | Daughter | — | New Jersey |
| 37 | Harriet Fortleman | 10 | Daughter | — | New Jersey |
| 38 | Jerry D Conte | 39 | Head | Broker | Italy |
| 39 | Annie J Conte | 31 | Wife | — | New Jersey |
| 40 | Teresa Conte | 18 | Daughter | — | New Jersey |
| 41 | Andrew H Conte | 14 | Son | — | New Jersey |
| 42 | Harry D Fontenau | 41 | Head | Salesman | New York |
| 43 | Anna L Fontenau | 42 | Wife | — | New Jersey |
| 44 | Deisderderfer Nancy Fontenau | 19 | Step Daughter | — | New Jersey |
| 45 | Antrim John Fontenau | 65 | Step Father | Shipping Clerk | New Jersey |
| 46 | Max Levin | 29 | Head | President | New Jersey |
| 47 | Katherine Levin | 24 | Wife | — | New York |
| 48 | Harvey Cohen | 39 | Head | Proprietor | New Jersey |
| 49 | Bessie Cohen | 37 | Wife | — | New Jersey |
| 50 | Caroline Cohen | 15 | Daughter | — | New Jersey |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)