JP
John Parker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Parker across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Alfus & Hutchins — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Parker |
| Given Name | John Q. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Spinner |
| Industry | Woolen industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1240 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Spinner |
| Township / Ward | Lowell 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Parker | Head | — | 30 | ~1910 |
| John Parker | Son | — | 2 | ~1938 |
| Ella Parker | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Oiler Grease |
| Industry | Auto Service Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 30
Middlesex-County, Massachusetts · implied b. ~1910 — 3 household members
| Surname | Parker |
| Given Name | John Q. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell city |
| 1935 Residence (County) | Middlesex |
| Occupation | Spinner |
| Industry | Woolen industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1240 |
| Highest Grade | H 2 |
| 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 John Parker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfus Parker (~0.92 confidence) and father Hutchins Parker (~0.92 confidence) and mother Ethel Parker (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfus Parker
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Hutchins Parker
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ethel Parker
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Parker
Head · 1940 · age 30 · b. ~1910 · 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-t0627-01691-00650)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mabel W. James | 67 | Head | Stitcher | Massachusetts |
| 42 | Edna Fagis | 56 | Niece | Kitchen K | Massachusetts |
| 43 | Joseph Fagis | 57 | Nephew-in-law | — | Tennessee |
| 44 | Francis Q. Trumm | 62 | Head | Janitor | Massachusetts |
| 45 | Berneice Trumm | 63 | Wife | — | Vermont |
| 46 | Ernest Q. Trumm | 35 | Head | Time Keeper | Massachusetts |
| 47 | Barbara Trumm | 33 | Wife | — | Maine |
| 48 | Charles Trumm | 4 | Son | — | Massachusetts |
| 49 | Leo Trumm | 3 | Son | — | Massachusetts |
| 50 | John Trumm | 2 | Son | — | Massachusetts |
| 51 | Henry Trumm | 1 | Son | — | Massachusetts |
| 52 | Edgar O. Pushion | 36 | Head | Chauffeur | Vermont |
| 53 | Aline Pushion | 40 | Wife | — | Canada-French |
| 54 | Raymond Pushion | 11 | Son | — | Vermont |
| 55 | John Pushion | 9 | Son | — | Vermont |
| 56 | Arthur Pushion | 7 | Son | — | Massachusetts |
| 57 | Maurice Pushion | 6 | Son | — | Massachusetts |
| 58 | Robert Pushion | 0 | Son | — | Massachusetts |
| 59 | John Q. Parker THIS PERSON | 30 | Head | Spinner | Massachusetts |
| 60 | Ella Parker | 28 | Wife | — | Maine |
| 61 | John Parker | 2 | Son | — | Massachusetts |
| 62 | Elizabeth Lambert | 55 | Head | — | Vermont |
| 63 | Doris Lambert | 29 | Daughter | Waitress | Massachusetts |
| 64 | Roy Lambert | 27 | Son | — | Massachusetts |
| 65 | Irene Lambert | 23 | Daughter | Waitress | Massachusetts |
| 66 | Russell Q. Halloran | 23 | Head | Presser Of Counters | Massachusetts |
| 67 | Claire Halloran | 20 | Wife | — | Massachusetts |
| 68 | Richard Halloran | 4 | Son | — | Massachusetts |
| 69 | Marie Q. Race | 74 | Head | — | Canada-French |
| 70 | Raymond Q. Wesson | 34 | Head | Laborer | Massachusetts |
| 71 | Malvina Wesson | 66 | Mother | — | Canada-French |
| 72 | William Winn | 65 | Head | Fireman Watchman | Irish Free State |
| 73 | Margaret Q. Winn | 52 | Wife | — | Irish Free State |
| 74 | Margaret Winn | 30 | Daughter | — | New Hampshire |
| 75 | William Winn | 28 | Son | Chemist | New Hampshire |
| 76 | Henry Muldoon | 28 | Head | Looper | New Hampshire |
| 77 | Catherine Q. Muldoon | 25 | Wife | — | New Hampshire |
| 78 | Helen Muldoon | 13 | Daughter | — | New Hampshire |
| 79 | Grace Muldoon | 10 | Daughter | — | New Hampshire |
| 80 | Catherine Muldoon | 8 | Daughter | — | New Hampshire |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)