MK
Mary Keefe — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Keefe across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Keefe |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Waltham City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Frank Harvey | Other | — | 56 | ~1874 |
| Francis Keefe | Son | — | 18 | ~1912 |
| Mary Keefe | Spouse | — | 54 | ~1876 |
| Mary Keefe | Daughter | — | 15 | ~1915 |
| Patrick Keefe | Head | — | 52 | ~1878 |
| Robert Keefe | Son | — | 20 | ~1910 |
| Samuel Bush | Other | — | 52 | ~1878 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 5
Middlesex, Massachusetts · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | Mary R |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 15
Middlesex, Massachusetts · implied b. ~1915 — 7 household members
| Surname | Keefe |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| 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 Keefe across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Keefe
Daughter · 1930 · age 15 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
Francis Keefe
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Keefe
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel930:0492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thos E Mccullough | 55 | Head | Salesman | Massachusetts |
| 2 | Leonore Mccullough | 32 | Wife | — | Massachusetts |
| 3 | Douglas Mccullough | 14 | Son | — | Massachusetts |
| 4 | Elaine Mccullough | 4 | Daughter | — | Massachusetts |
| 5 | Thomas Mccullough | 1 | Son | — | Massachusetts |
| 6 | Felix J Geoffrion | 57 | Head | Carpenter | Massachusetts |
| 7 | Rose D Geoffrion | 53 | Wife | — | Maine |
| 8 | Felix J Jr Geoffrion | 31 | Son | Automobile Repairer | Massachusetts |
| 9 | Gladys L Geoffrion | 31 | Daughter-in-law | — | Massachusetts |
| 10 | Barbara G Geoffrion | 2 | Daughter | — | Massachusetts |
| 11 | Felix J Iii Geoffrion | 1 | Son | — | Massachusetts |
| 12 | Joan R Geoffrion | 0 | Daughter | — | Massachusetts |
| 13 | William E Peterson | 73 | Head | Doctor | Maine |
| 14 | Minnie Peterson | 67 | Wife | — | Massachusetts |
| 15 | Patrick J Keefe | 52 | Head | Roofer | Massachusetts |
| 16 | Mary F Keefe | 54 | Wife | — | Massachusetts |
| 17 | Robert J Keefe | 20 | Son | — | Massachusetts |
| 18 | Francis J Keefe | 18 | Son | Helper (Roofer) | Massachusetts |
| 19 | Mary R Keefe THIS PERSON | 15 | Daughter | — | Massachusetts |
| 20 | Frank A Harvey | 56 | Lodger | Laborer | Massachusetts |
| 21 | Samuel L Bush | 52 | Lodger | — | Massachusetts |
| 22 | William J Dannan | 48 | Head | Lawyer | Massachusetts |
| 23 | Alice B Dannan | 40 | Wife | — | Massachusetts |
| 24 | Mary Dannan | 11 | Daughter | — | Massachusetts |
| 25 | William J Jr Dannan | 7 | Son | — | Massachusetts |
| 26 | Bernadette Thibeau | 25 | Maid | Maid | Canada French |
| 27 | Frederick H Kervin | 70 | Head | Retired Merchant | Massachusetts |
| 28 | Adaline Z Kervin | 58 | Wife | — | Maine |
| 29 | Fannie P Floyd | 65 | Head | — | Massachusetts |
| 30 | Helen A Floyd | 58 | Sister | — | Massachusetts |
| 31 | John J Murphy | 49 | Head | Printer | Irish Free State |
| 32 | Mary R Murphy | 42 | Wife | — | Irish Free State |
| 33 | John Nolan | 45 | Head | Cook | Maine |
| 34 | Harriette L Nolan | 51 | Wife | — | Maine |
| 35 | Harold L Nolan | 33 | Son | Bookkeeper | Maine |
| 36 | Mary E Nolan | 30 | Daughter | Stenographer | Maine |
| 37 | Ethel L Nolan | 22 | Daughter | Teacher | Vermont |
| 38 | Katherine E Nolan | 16 | Daughter | — | Vermont |
| 39 | John J Stanford | 55 | Head | Painter | Massachusetts |
| 40 | Nora V Stanford | 43 | Wife | — | Massachusetts |
| 41 | Anna J Mckillop | 53 | Sister | Trimmer | Massachusetts |
| 42 | Mary R Jones | 51 | Head | — | Scotland |
| 43 | Marguerite V Jones | 16 | Daughter | — | Vermont |
| 44 | Michael J Love | 46 | Head | Manager | New Hampshire |
| 45 | Elizabeth M Love | 46 | Wife | — | New Hampshire |
| 46 | Ada B Howard | 65 | Mother-in-law | — | New Hampshire |
| 47 | Charles B Burgess | 54 | Head | Salesman | Connecticut |
| 48 | Nellie M Burgess | 52 | Wife | — | Vermont |
| 49 | Charles J Burgess | 17 | Son | — | Massachusetts |
| 50 | George J Burgess | 15 | Son | — | 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)