MH
Mary Herbert — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Herbert across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Female
Spouse
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Herbert |
| Given Name | Mary T |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Somerville |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Walter Herbert | Son | — | 29 | ~1911 |
| Mary Herbert | Spouse | — | 61 | ~1879 |
| Helen Sanborn | Other | — | 41 | ~1899 |
Census Appearances
1920
Middlesex, Massachusetts
Other, age 42
Middlesex, Massachusetts · implied b. ~1878 — 27 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Herbert |
| Given Name | Mary |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Other, age 51
Middlesex, Massachusetts · implied b. ~1879 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Herbert |
| Given Name | May F. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Spouse, age 61
Middlesex-County, Massachusetts · implied b. ~1879 — 3 household members
| Surname | Herbert |
| Given Name | Mary T |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Herbert across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Herbert
Spouse · 1940 · age 61 · b. ~1879 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01703-00562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary T Herbert THIS PERSON | 61 | Wife | — | New Hampshire |
| 42 | Helen L Sanborn | 41 | Sister in law | Designer | New Hampshire |
| 43 | Walter E Herbert | 29 | Son | Welder | Massachusetts |
| 44 | John Cummings | 44 | Head | Chef | Massachusetts |
| 45 | Margaret Cummings | 40 | Wife | — | Massachusetts |
| 46 | Margaret A Halley | 15 | Daughter | — | Massachusetts |
| 47 | Elizabeth Cummings | 10 | Daughter | — | Massachusetts |
| 48 | Alfred A Farinoli | 35 | Head | Mechanic | Massachusetts |
| 49 | Evelyn E Farinoli | 33 | Wife | — | New Hampshire |
| 50 | Salvador F Freno | 43 | Head | Printer | Massachusetts |
| 51 | Rose C Freno | 16 | Daughter | — | Massachusetts |
| 52 | Barbara A Freno | 12 | Daughter | — | Massachusetts |
| 53 | Catherine Aitken | 41 | Sister | Packer | Massachusetts |
| 54 | George R Aitken | 21 | Nephew | Cleaner | Massachusetts |
| 55 | Leslie Aitken | 17 | Nephew | — | Massachusetts |
| 56 | Frank N Wentworth | 62 | Head | — | Massachusetts |
| 57 | Marion E Wentworth | 66 | Wife | — | New York City |
| 58 | Catherine Coffey | 54 | Maid | Maid | England |
| 59 | Ada P Smith | 62 | Head | — | New Hampshire |
| 60 | Dorothy M Smith | 32 | Daughter | — | Canada |
| 61 | John B Ronchey | 71 | Head | Printer | Massachusetts |
| 62 | Grace C Ronchey | 71 | Wife | — | Massachusetts |
| 63 | Helen B Ronchey | 31 | Daughter | Stenog | Massachusetts |
| 64 | Jean M Ronchey | 27 | Daughter | Teacher | Massachusetts |
| 65 | Charles F Oberhauser | 35 | Son in law | Adjuster | Massachusetts |
| 66 | Grace M Oberhauser | 32 | Daughter | — | Massachusetts |
| 67 | Charles J Oberhauser | 3 | Grandson | — | Massachusetts |
| 68 | David F Oberhauser | 1 | Grandson | — | Massachusetts |
| 69 | Geo Krobbe | 39 | Head | Doctor | Italy |
| 70 | Lillian Krobbe | 36 | Wife | — | New York City |
| 71 | Raphael C Krobbe | 3 | Son | — | Massachusetts |
| 72 | Constance Krobbe | 2 | Daughter | — | Massachusetts |
| 73 | Nancy Lee Krobbe | 1 | Daughter | — | Massachusetts |
| 74 | Eleanor Cagney | 52 | Lodger | — | Massachusetts |
| 75 | Angelo Wastaferro | 63 | Head | — | Italy |
| 76 | Josephine Wastaferro | 58 | Wife | — | Italy |
| 77 | John E Wastaferro | 30 | Son | Mechanic | Pennsylvania |
| 78 | Angelo J Wastaferro | 27 | Son | Barber | Oklahoma |
| 79 | Rose Wastaferro | 24 | Daughter | Tailoress | Oklahoma |
| 80 | Sadie T Wastaferro | 21 | Daughter | Tailoress | Oklahoma |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)