ML
Mary Lindsay — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Lindsay across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 8-person household.
Age 20
b. ~1910
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Lindsay |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1910 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Madeline Ferreira | Daughter | — | 27 | ~1903 |
| Gertrude Lindsay | Daughter | — | 22 | ~1908 |
| Mildred Lindsay | Daughter | — | 13 | ~1917 |
| Antone Ferreira | Other | — | 32 | ~1898 |
| Walter Lindsay | Son | — | 25 | ~1905 |
| Emmett Lindsay | Head | — | 53 | ~1877 |
| Mary Lindsay | Spouse | — | 52 | ~1878 |
| Mary Lindsay | Daughter | — | 20 | ~1910 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 20
Suffolk, Massachusetts · implied b. ~1910 — 8 household members
| Surname | Lindsay |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 29
Suffolk-County, Massachusetts · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lindsey |
| Given Name | Marcella M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | stenographer |
| Industry | agents office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Lindsay across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lindsay
Daughter · 1930 · age 20 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Walter Lindsay
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Ferreira
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Lindsay
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Lindsay
Sibling · 1930 · age 22
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel956:0438)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace E Flanagan | 24 | Daughter | Teacher | Massachusetts |
| 2 | Julia J Flanagan | 60 | Sister-in-law | Assembler | Maine |
| 3 | John A Noonan | 36 | Head | Contract Dept | Massachusetts |
| 4 | Agnes M Noonan | 24 | Wife | — | Massachusetts |
| 5 | Peter Noonan | 1 | Son | — | Massachusetts |
| 6 | James F Mcgrath | 31 | Head | Mechanic | Massachusetts |
| 7 | Mary M Mcgrath | 28 | Wife | — | Massachusetts |
| 8 | James J Mcgrath | 10 | Son | — | Massachusetts |
| 9 | Charles J Newell | 49 | Head | Sta Engineer | Massachusetts |
| 10 | Mary E Newell | 46 | Wife | — | Massachusetts |
| 11 | Dorothy F Newell | 17 | Daughter | — | Massachusetts |
| 12 | Marion G Newell | 15 | Daughter | — | Massachusetts |
| 13 | Isabel Newell | 12 | Daughter | — | Massachusetts |
| 14 | George M Riley | 57 | Head | Accountant | Massachusetts |
| 15 | Helen Josephine M Riley | 59 | Servant | Governess | Scotland |
| 16 | Carl J Mainquist | 53 | Head | Carpenter | Sweden |
| 17 | Edith G Mainquist | 35 | Wife | — | Massachusetts |
| 18 | Daniel G Mainquist | 14 | Son | — | Massachusetts |
| 19 | Lillian E Mainquist | 9 | Daughter | — | Massachusetts |
| 20 | Sarah Mainquist | 29 | Lodger | — | Massachusetts |
| 21 | Louis Lefort | 78 | Head | Watchman | Canada French |
| 22 | Napoleon Lefort | 49 | Son | Mechanic | New York |
| 23 | Patrick H Iden | 52 | Head | — | Massachusetts |
| 24 | Mary A Iden | 58 | Wife | Operator | Irish Free State |
| 25 | Matthew Iden | 26 | Nephew | Brakeman | Connecticut |
| 26 | Anna B Iden | 23 | Niece | Teacher | Connecticut |
| 27 | William P Iden | 19 | Nephew | — | Connecticut |
| 28 | Herbert Keane | 47 | Lodger | Laborer | Irish Free State |
| 29 | Samuel Diamond | 54 | Head | Laborer | England |
| 30 | Beatrice Diamond | 53 | Wife | — | England |
| 31 | Emmett P Lindsay | 53 | Head | Watchman | Virginia |
| 32 | Mary A Lindsay | 52 | Wife | — | Massachusetts |
| 33 | Madeline Ferreira | 27 | Daughter | — | Massachusetts |
| 34 | Walter G Lindsay | 25 | Son | Piper | Massachusetts |
| 35 | Gertrude E Lindsay | 22 | Daughter | — | Massachusetts |
| 36 | Mary M Lindsay THIS PERSON | 20 | Daughter | — | Massachusetts |
| 37 | Mildred Lindsay | 13 | Daughter | — | Massachusetts |
| 38 | Antone Ferreira | 32 | Son-in-law | Spinner | Cape Verde |
| 39 | Albert J Burgess | 62 | Head | Machinist | England |
| 40 | Eleanor Burgess | 63 | Wife | — | England |
| 41 | Sigurd B Foss | 36 | Head | Inspector | Denmark |
| 42 | Mary T Foss | 35 | Wife | — | Irish Free State |
| 43 | Mary E Foss | 7 | Daughter | — | Massachusetts |
| 44 | Virginia A Foss | 5 | Daughter | — | Massachusetts |
| 45 | Edward B Foss | 3 | Son | — | Massachusetts |
| 46 | Patricia A Foss | 0 | Daughter | — | Massachusetts |
| 47 | Patrick Ahearn | 36 | Lodger | Laborer | Irish Free State |
| 48 | Joseph Binns | 60 | Head | Comber | England |
| 49 | Mary E Binns | 65 | Wife | — | England |
| 50 | Ernest J Ernest | 28 | Son | Laborer | Pennsylvania |
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)