RM
Richard Mitchell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Richard Mitchell across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Mitchell |
| Given Name | Richard J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Arlington |
| Est. Birth Year | ~1923 |
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 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Paula Mitchell | Daughter | — | 5 | ~1935 |
| Michael Kelley | Other | — | 71 | ~1869 |
| Ruth Mitchell | Other | — | 48 | ~1892 |
| Robert Mitchell | Son | — | 15 | ~1925 |
| Ann Mitchell | Daughter | — | 12 | ~1928 |
| Madeline Mitchell | Head | — | 45 | ~1895 |
| Richard Mitchell | Son | — | 17 | ~1923 |
| Mary Mitchell | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mitchell |
| Given Name | Richard J. |
| Relationship to Head | Son |
| Sex | M |
| 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 |
1940
Middlesex-County, Massachusetts
Son, age 17
Middlesex-County, Massachusetts · implied b. ~1923 — 8 household members
| Surname | Mitchell |
| Given Name | Richard J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Highest Grade | Hs 2 |
| 1935 Residence | Massachusetts |
| 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 Richard Mitchell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Mitchell
Son · 1940 · age 17 · b. ~1923 · Massachusetts
★ You are viewing this record
Sibling
Robert Mitchell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Mitchell
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paula Mitchell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mitchell
Sibling · 1940 · age 18
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
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-t0627-01601-00848)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel S Libby | 70 | Head | — | Maine |
| 2 | Mary Agnes Kelley | 58 | Head | — | Vermont |
| 3 | Bernard F Kelley | 27 | Son | Bank Clerk | Vermont |
| 4 | Katherine T. O. Collins | 83 | Head | — | Massachusetts |
| 5 | Nancy M Collins | 78 | Sister | — | Massachusetts |
| 6 | Alton C Buck | 27 | Head | Asst Garage Mechanic | Massachusetts |
| 7 | Ann M Buck | 29 | Wife | — | Massachusetts |
| 8 | Virginia Buck | 3 | Daughter | — | Massachusetts |
| 9 | David C Buck | 0 | Son | — | Massachusetts |
| 10 | Revere Dunbar | 72 | Head | Manufacturer | Maine |
| 11 | Marjorie Dunbar | 23 | Daughter | — | Massachusetts |
| 12 | Herrick Dunbar | 24 | Son in law | Sales Executive | Massachusetts |
| 13 | Charles Mclaughlan | 22 | Servant | Cook - Houseboy | Massachusetts |
| 14 | Doris C Bailey | 40 | Head | — | Massachusetts |
| 15 | Millard L Bailey | 42 | Husband | Owner | Massachusetts |
| 16 | Jeanne Bailey | 12 | Daughter | — | Massachusetts |
| 17 | Constance Bailey | 11 | Daughter | — | Massachusetts |
| 18 | John J. Fitzpatrick | 70 | Head | Traveling Salesman | Massachusetts |
| 19 | Lula A Fitzpatrick | 61 | Wife | — | Massachusetts |
| 20 | Ellen B. Fitzpatrick | 35 | Daughter | School Teacher | Massachusetts |
| 21 | John J Hill | 63 | Head | — | Massachusetts |
| 22 | Mary M Hill | 60 | Wife | — | Massachusetts |
| 23 | John J. Jr. Hill | 27 | Son | Clerk | Massachusetts |
| 24 | Eleanor M Hill | 24 | Daughter | Secretary | Massachusetts |
| 25 | Edgar S Hill | 23 | Son | Adjuster | Massachusetts |
| 26 | Rupert L. Dutton | 45 | Head | Office Manager | New Hampshire |
| 27 | Catherine P Dutton | 45 | Wife | — | Massachusetts |
| 28 | Ann C Brooker | 75 | Mother in law | — | Massachusetts |
| 29 | Madeline L Mitchell | 45 | Head | — | Massachusetts |
| 30 | Mary V. Mitchell | 18 | Daughter | Seamstress | Massachusetts |
| 31 | Richard J. Mitchell THIS PERSON | 17 | Son | — | Massachusetts |
| 32 | Robert C Mitchell | 15 | Son | — | Massachusetts |
| 33 | Ann C Mitchell | 12 | Daughter | — | Massachusetts |
| 34 | Paula M Mitchell | 5 | Daughter | — | Massachusetts |
| 35 | Michael J Kelley | 71 | Father | — | Massachusetts |
| 36 | Ruth M Mitchell | 48 | Sister in law | Bank Clerk | Massachusetts |
| 37 | Enid M. Macdonald | 43 | Head | — | England |
| 38 | Eleanor R Macdonald | 18 | Daughter | Seamstress | Massachusetts |
| 39 | Allan J. Macdonald | 9 | Son | — | Massachusetts |
| 40 | Sarah A Moran | 83 | Mother | — | England |
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)