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John Merrill — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Merrill across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & Percy — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Merrill |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont Town |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Electrical Supplies |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 2000 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Belmont Town |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Charles Merrill | Head | — | 68 | ~1872 |
| John Merrill | Son | — | 29 | ~1911 |
| Bessie Merrill | Spouse | — | 62 | ~1878 |
| Vincent Merrill | Son | — | 27 | ~1913 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrill |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 19
Middlesex, Massachusetts · implied b. ~1911 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Morrill |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Baggage Master |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 29
Middlesex-County, Massachusetts · implied b. ~1911 — 4 household members
| Surname | Merrill |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Belmont Town |
| 1935 Residence (County) | Middlesex |
| Occupation | Salesman |
| Industry | Electrical Supplies |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 2000 |
| Highest Grade | C 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 John Merrill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Merrill (~0.92 confidence) and father Percy Morrill (~0.92 confidence) and father Percy Morrill (~0.60 confidence) and mother Agnes Morrill (~0.60 confidence) and mother Agnes Morrill (~0.92 confidence) and mother Bessie Merrill (~0.92 confidence) and mother Abbie Merrill (~0.83 confidence). The pedigree spans 2 generations with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.82
Father
Charles Merrill
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Percy Morrill
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Percy Morrill
b. ~1907
Source father
● Household
· direct · ~0.6
Mother
Agnes Morrill
b. ~1907
Source mother
● Household
· direct · ~0.6
Mother
Agnes Morrill
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Bessie Merrill
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Abbie Merrill
b. ~1838
Source mother>mother
● Household
· direct · ~0.83
This person
Anchor record
John Merrill
Son · 1940 · age 29 · b. ~1911 · Massachusetts
★ You are viewing this record
Sibling
Vincent Merrill
Sibling · 1940 · age 27
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-t0627-01602-01006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur L. Clarke | 23 | Son | — | Massachusetts |
| 42 | Anne Sullivan | 33 | boarder | Secretary | Massachusetts |
| 43 | Minor Patton | 29 | head | Teacher | Massachusetts |
| 44 | Constance Patton | 33 | wife | — | Pennsylvania |
| 45 | Gardner Patton | 2 | son | — | Massachusetts |
| 46 | Charles Candee | 28 | brother in law | Reservation Clerk | Virginia |
| 47 | Frank L. Burnham | 77 | head | — | Maine |
| 48 | Rose E. Burnham | 72 | wife | — | Massachusetts |
| 49 | Rose Gullifer | 69 | head | — | Maine |
| 50 | Jessie Grayson | 44 | daughter | Instructor | Maine |
| 51 | Lina Bashier | 73 | niece | — | Maine |
| 52 | Frederick B. Rosenberg | 57 | head | Salesman | Massachusetts |
| 53 | Mary E. Rosenberg | 58 | wife | — | Rhode Island |
| 54 | Irma P. Rosenberg | 27 | daughter | Clerk | Massachusetts |
| 55 | Alice M. Rosenberg | 25 | daughter | Actuary Clerk | Massachusetts |
| 56 | Eunice N. Rosenberg | 23 | daughter | Addressograph Clerk | Massachusetts |
| 57 | Charles B. Rosenberg | 21 | son | — | Massachusetts |
| 58 | John W. Rosenberg | 18 | son | Delivery Boy | Massachusetts |
| 59 | William R. Rawlings | 41 | head | — | Illinois |
| 60 | Helen Rawlings | 39 | wife | — | New Jersey |
| 61 | Robert F. Rawlings | 18 | son | Truck Driver | Massachusetts |
| 62 | William R. Jr. Rawlings | 10 | son | — | Massachusetts |
| 63 | Clarence G. Chapin | 51 | head | Accountant | New York |
| 64 | Margaret Chapin | 49 | wife | — | Massachusetts |
| 65 | Edward G. Chapin | 23 | son | Clerk | Massachusetts |
| 66 | Earl W. Taylor | 53 | head | Teacher | New York |
| 67 | Helen S. Taylor | 54 | wife | — | New York |
| 68 | Charles G. Merrill | 68 | head | Clergyman | New Hampshire |
| 69 | Bessie Merrill | 62 | wife | — | Massachusetts |
| 70 | John Merrill THIS PERSON | 29 | son | Salesman | Massachusetts |
| 71 | Vincent Merrill | 27 | son | Landscape Architect | Massachusetts |
| 72 | Mary Maloney | 67 | head | — | Canada-English |
| 73 | Matilda Loughran | 53 | sister | Registered Nurse | Canada-English |
| 74 | Delia O'Connell | 76 | sister | — | Massachusetts |
| 75 | Marion Hemsley | 31 | boarder | Secretary | Massachusetts |
| 76 | Fernand Rousseau | 49 | head | Instructor | Massachusetts |
| 77 | Florence Rousseau | 47 | wife | — | Massachusetts |
| 78 | George Rousseau | 79 | father | — | France |
| 79 | John Monagle | 65 | head | Salesman | Massachusetts |
| 80 | Ruth Monagle | 45 | wife | — | Massachusetts |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 parents
~0.81
Gen 2 · 1 grandparents
~0.83
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)