MW
Mary Williamson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Merrimack, New Hampshire
Our Model Tree links this Mary Williamson across the 1900, 1910, 1920 and 1930 US Censuses in Merrimack, New Hampshire (XGBoost, ~Confirmed) — first a spouse (b.~1873), then head of a 4-person household.
Age 57
b. ~1873
Female
Spouse
Born: New Hampshire
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Merrimack, New Hampshire |
| Surname | Williamson |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Concord City |
| Est. Birth Year | ~1873 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Whethemah Williamson | Daughter | — | 32 | ~1898 |
| Walter Williamson | Head | — | 61 | ~1869 |
| Dean Williamson | Son | — | 19 | ~1911 |
| Mary Williamson | Spouse | — | 57 | ~1873 |
Census Appearances
1900
Merrimack, New …
Spouse, age 27
Merrimack, New Hampshire · implied b. ~1873 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Birth Month | Aug |
| Birth Year | 1873 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Merrimack, New …
Spouse, age 36
Merrimack, New Hampshire · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Years Married | 15 |
| Children Born | 2 |
| Children Living | 2 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Merrimack, New …
Spouse, age 46
Merrimack, New Hampshire · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Spouse, age 57
Merrimack, New Hampshire · implied b. ~1873 — 4 household members
| Surname | Williamson |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Williamson across 4 US Census years (1900, 1910, 1920 and 1930) in Merrimack, New Hampshire, using XGBoost record linkage.
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This person
Anchor record
Mary Williamson
Spouse · 1930 · age 57 · b. ~1873 · New Hampshire
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Merrimack, New Hampshire
Open full size
1930 US Federal Census — Merrimack, New Hampshire
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1304unit:0826)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Clinton E. Morrill | 46 | Head | Partner | New Hampshire |
| 52 | Addie W. Morrill | 33 | Wife | None | New Hampshire |
| 53 | Charlotte A. Morrill | 10 | Daughter | None | New Hampshire |
| 54 | Arthur W. Saltmarsh | 35 | Lodger | Salesman | New Hampshire |
| 55 | Charles E. Morin | 40 | Head | Salesman | Canada-French |
| 56 | Mabel H. Morin | 36 | Wife | None | Canada-French |
| 57 | Richard R. Morin | 13 | Son | None | New Hampshire |
| 58 | Robert Morin | 11 | Son | None | New Hampshire |
| 59 | Carolyn A. Morin | 3 | Daughter | None | New Hampshire |
| 60 | Mary E. Coleman | 56 | Head | None | New Hampshire |
| 61 | Maude M. Coleman | 54 | Sister | Mangle Room | New Hampshire |
| 62 | Nellie E. Keeler | 80 | Lodger | None | New Hampshire |
| 63 | Arthur B. Coleman | 37 | Head | Driver | New Hampshire |
| 64 | Agnes M. Coleman | 30 | Wife | None | New York |
| 65 | Marian A. Coleman | 10 | Daughter | None | New Hampshire |
| 66 | Joseph R. Provost | 44 | Head | Laborer | New Hampshire |
| 67 | Laura A. Provost | 44 | Wife | None | New Hampshire |
| 68 | Paul A. Provost | 20 | Son | None | New Hampshire |
| 69 | Claire E. Provost | 18 | Daughter | None | New Hampshire |
| 70 | Raymond G. Provost | 12 | Son | None | New Hampshire |
| 71 | Arthur A. Provost | 5 | Son | None | New Hampshire |
| 72 | Arthur M. Stearns | 64 | Head | Owner | New Hampshire |
| 73 | Lilla F. Stearns | 62 | Wife | None | New Hampshire |
| 74 | Rosa A. Ward | 65 | Sister-in-law | Seamstress | New Hampshire |
| 75 | Louis Levesque | 68 | Head | Gardner | Canada-French |
| 76 | Delina Levesque | 65 | Wife | None | Canada-French |
| 77 | Albert Levesque | 25 | Son | Manager | New Hampshire |
| 78 | Louise Levesque | 5 | Daughter | None | New Hampshire |
| 79 | Joseph Beason | 73 | Head | Carpenter | Canada-French |
| 80 | Anne M. Beason | 36 | Daughter | None | New Hampshire |
| 81 | William E. Beason | 34 | Son | Truck Driver | New Hampshire |
| 82 | Edlow S. Beason | 43 | Son | Salesman | Canada-French |
| 83 | Nellie E. Connor | 64 | Head | Sorter | New Hampshire |
| 84 | Mary A. Connor | 61 | Sister | None | New Hampshire |
| 85 | Ralph J. Mccue | 37 | Head | Houseman | New Hampshire |
| 86 | Mabel M. Mccue | 35 | Wife | None | New Hampshire |
| 87 | Doris M. Mccue | 15 | Daughter | None | New Hampshire |
| 88 | Mildred E. Mccue | 11 | Daughter | None | New Hampshire |
| 89 | Marion M. Mccue | 9 | Daughter | None | New Hampshire |
| 90 | John P. Halpin | 61 | Head | Painter | New Hampshire |
| 91 | Grace A. Halpin | 29 | Niece | None | New Hampshire |
| 92 | Fred B. Russell | 43 | Nephew | Promoter | New Hampshire |
| 93 | Walter Williamson | 61 | Head | Manager | New Hampshire |
| 94 | Mary L. Williamson THIS PERSON | 57 | Wife | None | New Hampshire |
| 95 | Dean P. Williamson | 19 | Son | None | New Hampshire |
| 96 | Whethemah Williamson | 32 | Daughter | Dram-Nurse | Canada-English |
| 97 | Neil E. Marston | 26 | Head | Chauffeur | New Hampshire |
| 98 | Georgiana L. Marston | 20 | Wife | None | New Hampshire |
| 99 | Alice L. Marston | 0 | Daughter | None | New Hampshire |
| 100 | Kate W. Chase | 67 | Head | None | Vermont |
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)