MH
Mary Harding — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Plymouth, Massachusetts
Our Model Tree links this Mary Harding across the 1930 and 1940 US Censuses in Plymouth, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 7-person household.
Age 14
b. ~1916
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Plymouth, Massachusetts |
| Surname | Harding |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Whitman Town |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Thomas Harding | Son | — | 12 | ~1918 |
| Walter Harding | Son | — | 19 | ~1911 |
| Louis Harding | Head | — | 43 | ~1887 |
| Mary Harding | Spouse | — | 43 | ~1887 |
| Mary Harding | Daughter | — | 14 | ~1916 |
| Rowena Harding | Daughter | — | 17 | ~1913 |
| Veronica Harding | Daughter | — | 11 | ~1919 |
Census Appearances
1930
Plymouth, Massachusetts
Daughter, age 14
Plymouth, Massachusetts · implied b. ~1916 — 7 household members
| Surname | Harding |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Other, age 25
Norfolk-County, Massachusetts · implied b. ~1915 — 38 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hardinger |
| Given Name | Mary C. |
| Relationship to Head | Staff Nurse |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Graduate Nurse |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 580 |
| Highest Grade | Hs 4 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Harding across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harding
Daughter · 1930 · age 14 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Veronica Harding
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Harding
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Harding
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rowena Harding
Sibling · 1930 · age 17
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 — Plymouth, Massachusetts
Open full size
1930 US Federal Census — Plymouth, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel941:0458)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick E Gordon | 55 | Head | Cutter | Connecticut |
| 2 | Ada M Gordon | 50 | Wife | Stitcher | Connecticut |
| 3 | Warren C Gordon | 27 | Son | Clerk | Massachusetts |
| 4 | Edgar E Mcclellan | 22 | Head | Bookkeeper | Massachusetts |
| 5 | Sarah A Mcclellan | 21 | Wife | — | Maine |
| 6 | Edith J Mcclellan | 1 | Daughter | — | Massachusetts |
| 7 | Edna A Mcclellan | 0 | Daughter | — | Massachusetts |
| 8 | John T Gilbert | 50 | Head | Painter | Sweden |
| 9 | Gerda C Gilbert | 49 | Wife | — | Sweden |
| 10 | Edith G. A. Gilbert | 20 | Daughter | Marker | Massachusetts |
| 11 | Alma E. G. Gilbert | 18 | Daughter | Packer | Massachusetts |
| 12 | John T. G. Gilbert | 13 | Son | — | Massachusetts |
| 13 | Beatrice M. E. Gilbert | 10 | Daughter | — | Massachusetts |
| 14 | Clement M D'Andrea | 46 | Head | Salesman | Turkey |
| 15 | Basil M Malaspilly | 55 | Boarder | — | Greece |
| 16 | Percy Washburn | 41 | Head | House Man | Massachusetts |
| 17 | Beatrice Washburn | 26 | Wife | — | Massachusetts |
| 18 | Ardelia L Washburn | 0 | Daughter | — | Massachusetts |
| 19 | Henry F Ellis | 67 | Head | Agent | Canada English |
| 20 | Annie P Ellis | 58 | Wife | — | Massachusetts |
| 21 | Roy H Ellis | 30 | Son | Channeler | Massachusetts |
| 22 | William G Gurney | 36 | Head | Reporter | Massachusetts |
| 23 | Grace M Gurney | 41 | Wife | — | Massachusetts |
| 24 | Mildred L Gurney | 17 | Step daughter | — | Massachusetts |
| 25 | Myrtle C Gurney | 14 | Step daughter | — | Massachusetts |
| 26 | Fred G Oliver | 51 | Head | Painter | Massachusetts |
| 27 | Minnie G Oliver | 51 | Wife | — | Canada English |
| 28 | Herbert W Sampson | 78 | Head | — | Massachusetts |
| 29 | Annie E Sampson | 76 | Wife | — | Massachusetts |
| 30 | Stella F Sampson | 52 | Daughter | Bookkeeper | Massachusetts |
| 31 | John J Hannigan | 40 | Head | Shaver | New York |
| 32 | Rose C Hannigan | 41 | Wife | — | Canada French |
| 33 | John J Jr Hannigan | 21 | Son | Shank Cutter | Massachusetts |
| 34 | Edward J Hannigan | 16 | Son | — | Massachusetts |
| 35 | Kenneth L Hannigan | 9 | Son | — | Massachusetts |
| 36 | Donald E Hannigan | 6 | Son | — | Massachusetts |
| 37 | Frank Ippolito | 21 | Son-in-law | Cutter | New York |
| 38 | Alice Ippolito | 19 | Daughter | — | Massachusetts |
| 39 | Louis C Harding | 43 | Head | Meat Cutter | Massachusetts |
| 40 | Mary A Harding | 43 | Wife | — | Irish Free State |
| 41 | Walter E Harding | 19 | Son | Shank Cutter | Massachusetts |
| 42 | Rowena C Harding | 17 | Daughter | Trimmer | Massachusetts |
| 43 | Mary Harding THIS PERSON | 14 | Daughter | — | Massachusetts |
| 44 | Thomas Harding | 12 | Son | — | Massachusetts |
| 45 | Veronica Harding | 11 | Daughter | — | Massachusetts |
| 46 | Henry A Ransom | 68 | Head | Shipper | Massachusetts |
| 47 | Ella C Ransom | 68 | Wife | — | Massachusetts |
| 48 | Marshall W Ransom | 38 | Son | Accountant | Massachusetts |
| 49 | Helen S Ransom | 34 | Daughter | Teacher | Massachusetts |
| 50 | Charles H Gurney | 74 | Head | Checker | Massachusetts |
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)