MK
Mary Kirby — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bristol, Massachusetts
Our Model Tree links this Mary Kirby across the 1920 and 1930 US Censuses in Bristol, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Bristol, Massachusetts |
| Surname | Kirby |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Mill Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Fall River City |
| Est. Birth Year | ~1913 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Kirby | Daughter | — | 15 | ~1915 |
| Dorothy Kirby | Daughter | — | 13 | ~1917 |
| James Kirby | Son | — | 13 | ~1917 |
| Rose Kirby | Daughter | — | 20 | ~1910 |
| Mary Kirby | Daughter | — | 17 | ~1913 |
| Margaret Kirby | Other | — | 48 | ~1882 |
| Margaret Kirby | Daughter | — | 23 | ~1907 |
| Walter Kirby | Son | — | 26 | ~1904 |
| Winifred Kirby | Daughter | — | 28 | ~1902 |
| James Kirby | Head | — | 50 | ~1880 |
Census Appearances
1920
Bristol, Massachusetts
Daughter, age 7
Bristol, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | May |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Bristol, Massachusetts
Daughter, age 17
Bristol, Massachusetts · implied b. ~1913 — 10 household members
| Surname | Kirby |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Stenographer |
| Industry | Mill Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Kirby across 2 US Census years (1920 and 1930) in Bristol, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kirby
Daughter · 1930 · age 17 · b. ~1913 · Massachusetts
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Sibling
James Kirby
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Kirby
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Kirby
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Kirby
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Kirby
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Kirby
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Kirby
Sibling · 1930 · age 20
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 — Bristol, Massachusetts
Open full size
1930 US Federal Census — Bristol, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel888:0314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Nathalie Peckham | 20 | Daughter | — | Massachusetts |
| 52 | John Dougherty | 42 | Head | Manager | Massachusetts |
| 53 | Eleanor Dougherty | 42 | Wife-H | — | Massachusetts |
| 54 | Eleanor Dougherty | 17 | Daughter | — | Massachusetts |
| 55 | Daniel E. Dougherty | 35 | Brother | Stenographer | Massachusetts |
| 56 | William Finnegan | 62 | Head | Laborer | Massachusetts |
| 57 | Joseph Finnegan | 67 | Brother | — | Massachusetts |
| 58 | Margaret Sullivan | 38 | Head | Spinner | Massachusetts |
| 59 | Katherine Sullivan | 66 | Mother-H | Bookkeeper | Massachusetts |
| 60 | Katherine Canning | 36 | Sister | — | Massachusetts |
| 61 | Marjorie Canning | 5 | Niece | — | Illinois |
| 62 | Elizabeth O'Brien | 47 | Head-H | Stenographer | Massachusetts |
| 63 | James F. O'Brien | 18 | Son | — | Massachusetts |
| 64 | Catherine O'Brien | 16 | Daughter | — | Massachusetts |
| 65 | Margaret O'Brien | 15 | Daughter | — | Massachusetts |
| 66 | Madeline O'Brien | 12 | Daughter | — | Massachusetts |
| 67 | Donald O'Brien | 8 | Son | — | Massachusetts |
| 68 | Henry J. Messier | 27 | Son-in-law | — | Massachusetts |
| 69 | Mary G. Messier | 23 | Daughter | Letter Carrier | Massachusetts |
| 70 | Barbara Messier | 2 | Granddaughter | — | Massachusetts |
| 71 | Margaret Walker | 71 | Head-H | — | Rhode Island |
| 72 | Jennie Walker | 45 | Daughter | — | Massachusetts |
| 73 | Charlotte Stewart | 30 | Daughter | Trimmer | Massachusetts |
| 74 | Mary S. Stevens | 49 | Head-H | — | England |
| 75 | Mabel Stevens | 23 | Daughter | — | Massachusetts |
| 76 | Edward F. Stevens | 22 | Son | Clerk | Massachusetts |
| 77 | Francis J. Stevens | 17 | Son | Machinist | Massachusetts |
| 78 | George Bellemare | 45 | Head | Bobbin | Rhode Island |
| 79 | Eva Bellemare | 46 | Wife-H | Blacksmith | Massachusetts |
| 80 | Hannah Faley | 68 | Head-H | — | Canada-English |
| 81 | Agnes E. Faley | 40 | Daughter | — | Massachusetts |
| 82 | James E. Kirby | 50 | Head | Time Keeper | Massachusetts |
| 83 | Margaret V. Kirby | 48 | Wife-H | Water Registrar | Massachusetts |
| 84 | Winifred Kirby | 28 | Daughter | — | Massachusetts |
| 85 | Walter E. Kirby | 26 | Son | — | Massachusetts |
| 86 | Margaret P. Kirby | 23 | Daughter | Teacher | Massachusetts |
| 87 | Rose E. Kirby | 20 | Daughter | Teacher | Massachusetts |
| 88 | Mary L. Kirby THIS PERSON | 17 | Daughter | Stenographer | Massachusetts |
| 89 | Ruth E. Kirby | 15 | Daughter | — | Massachusetts |
| 90 | James E. Kirby | 13 | Son | — | Massachusetts |
| 91 | Dorothy J. Kirby | 13 | Daughter | — | Massachusetts |
| 92 | Margaret Peters | 75 | Head-H | — | Scotland |
| 93 | Martha G. Peters | 54 | Daughter | — | Massachusetts |
| 94 | Martha Finnegan | 72 | Sister | Teacher | Scotland |
| 95 | Alphonse J. Barrette | 32 | Head | — | Massachusetts |
| 96 | Emma J. Barrette | 31 | Wife-H | Retail Merchant | Massachusetts |
| 97 | Hattie V. French | 61 | Head-H | — | New York |
| 98 | Alfred H. Cook | 59 | Brother | — | New York |
| 99 | Louise Peckham | 58 | Lodger | Watchman | Illinois |
| 100 | Annie M. Borden | 68 | Cousin | Teacher | Missouri |
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)