MC
Mary Connors — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mercer, New Jersey
Our Model Tree links this Mary Connors across the 1920 and 1930 US Censuses in Mercer, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 7-person household.
Age 21
b. ~1909
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, New Jersey |
| Surname | Connors |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | Clerk |
| Industry | Board of Education |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Clerk |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Connors | Daughter | — | 21 | ~1909 |
| Hugh Connors | Son | — | 7 | ~1923 |
| Mary Connors | Spouse | — | 42 | ~1888 |
| William Connors | Son | — | 17 | ~1913 |
| William Connors | Head | — | 57 | ~1873 |
| Kathleen Connors | Daughter | — | 20 | ~1910 |
| Thomas Connors | Son | — | 11 | ~1919 |
Census Appearances
1920
Mercer, New …
Daughter, age 11
Mercer, New Jersey · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conners |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| 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 …
Daughter, age 21
Mercer, New Jersey · implied b. ~1909 — 7 household members
| Surname | Connors |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Occupation | Clerk |
| Industry | Board of Education |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Connors across 2 US Census years (1920 and 1930) in Mercer, New Jersey, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Connors
Daughter · 1930 · age 21 · b. ~1909 · New Jersey
★ You are viewing this record
Sibling
William Connors
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Connors
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Connors
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Connors
Sibling · 1930 · age 11
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
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:newjerseycensus00reel1365:0543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | May A Warney | 50 | Wife | — | New Jersey |
| 2 | Inez H Warney | 23 | Daughter | Stenographer | New Jersey |
| 3 | Mary I Warney | 21 | Daughter | — | New Jersey |
| 4 | Robert O Warney | 21 | Son | — | New Jersey |
| 5 | James N Warney | 62 | Brother | Helper | Delaware |
| 6 | Henry D Van Dike | 73 | Head | Retired | New Jersey |
| 7 | Annie H Van Dike | 73 | Wife | — | New Jersey |
| 8 | Elizabeth Wolverton | 51 | Lodger | Teacher | New Jersey |
| 9 | George L Thompson | 57 | Head | Salesman | Maine |
| 10 | Fannie O Thompson | 55 | Wife | — | New Jersey |
| 11 | Elizabeth Thompson | 27 | Daughter | Bookkeeper | New Jersey |
| 12 | Alice R Thompson | 25 | Son | Teacher | New Jersey |
| 13 | Eleanor H Thompson | 24 | Daughter | — | New Jersey |
| 14 | Samuel P Thompson | 19 | Son | — | New Jersey |
| 15 | Howard K Thompson | 17 | Son | — | New Jersey |
| 16 | Christiana A Thompson | 11 | Daughter | — | New Jersey |
| 17 | Elizabeth J Byram | 87 | Mother-in-law | — | England |
| 18 | Sarah E Eardell | 25 | Niece | Teacher | New York |
| 19 | William C Heath | 35 | Head | Collector | New Jersey |
| 20 | Margaret S Heath | 33 | Wife | — | Pennsylvania |
| 21 | Margaret A Heath | 11 | Daughter | — | New Jersey |
| 22 | Clarence D Mueltop | 38 | Head | Dealer | New Jersey |
| 23 | Helen E Mueltop | 35 | Wife | — | Pennsylvania |
| 24 | Clarence D Jr Mueltop | 14 | Son | — | New Jersey |
| 25 | William H Mueltop | 8 | Son | — | New Jersey |
| 26 | John R Mueltop | 5 | Son | — | New Jersey |
| 27 | John S Macdaid | 75 | Head | Chiropodist | Scotland |
| 28 | Sarah A Macdaid | 65 | Wife | — | Ohio |
| 29 | Clarence J Macdaid | 23 | Son | Man | New York |
| 30 | Anna V Macdaid | 23 | Daughter-in-law | Cashier | New Jersey |
| 31 | Jean D Macdaid | 2 | Granddaughter | — | New Jersey |
| 32 | Carolyn B Malloy | 23 | Boarder | Stenographer | New Jersey |
| 33 | William J Connors | 57 | Head | General Office | Pennsylvania |
| 34 | Mary A Connors | 42 | Wife | — | New Jersey |
| 35 | Mary M Connors THIS PERSON | 21 | Daughter | Clerk | New Jersey |
| 36 | Kathleen M Connors | 20 | Daughter | — | New Jersey |
| 37 | William J Jr Connors | 17 | Son | — | New Jersey |
| 38 | Thomas J Connors | 11 | Son | — | New Jersey |
| 39 | Hugh B Connors | 7 | Son | — | New Jersey |
| 40 | Warren Donlon | 55 | Head | Blacksmith | New Jersey |
| 41 | Frances M Donlon | 50 | Sister | — | New Jersey |
| 42 | Peter J Donlon | 44 | Brother | — | New Jersey |
| 43 | Emma B Donlon | 58 | Sister | Saleslady | New Jersey |
| 44 | Catherine E Howarth | 12 | Sister | — | New Jersey |
| 45 | Fred Grifoni | 39 | Head | Repairman | Italy |
| 46 | Palmaira Grifoni | 32 | Wife | — | Italy |
| 47 | Fred Grifoni | 8 | Son | — | New Jersey |
| 48 | Angela M Grifoni | 6 | Daughter | — | New Jersey |
| 49 | Addison E Petty | 28 | Head | Pharmacist | New Jersey |
| 50 | Marie M Petty | 27 | Wife | — | New Jersey |
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)