MH
Margaret Henderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Margaret Henderson across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Henderson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danversport Danvers |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Danversport Danvers |
| Est. Birth Year | ~1929 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Sybil Henderson | Daughter | — | 4 | ~1936 |
| Frances Henderson | Daughter | — | 14 | ~1926 |
| Blanche Henderson | Head | — | 31 | ~1909 |
| Dorothy Henderson | Daughter | — | 12 | ~1928 |
| Elaine Henderson | Daughter | — | 10 | ~1930 |
| Margaret Henderson | Daughter | — | 11 | ~1929 |
| Joan Henderson | Daughter | — | 9 | ~1931 |
| James Henderson | Son | — | 8 | ~1932 |
Census Appearances
1930
Essex, Massachusetts
Daughter, age 2
Essex, Massachusetts · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Canada-F |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 11
Essex-County, Massachusetts · implied b. ~1929 — 8 household members
| Surname | Henderson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danversport Danvers |
| 1935 Residence (County) | Essex |
| Highest Grade | No 5 |
| 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 Margaret Henderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Henderson
Daughter · 1940 · age 11 · b. ~1929 · Massachusetts
★ You are viewing this record
Sibling
Elaine Henderson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Henderson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Henderson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sybil Henderson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Henderson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Henderson
Sibling · 1940 · age 8
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01579-00006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Aleck Kozlowski | 50 | Boarder | Buffer | Russia |
| 42 | William Kozlowski | 28 | Husband | Paster | Massachusetts |
| 43 | Alice Kozlowski | 30 | Wife | — | Massachusetts |
| 44 | Priscilla Kozlowski | 6 | Daughter | — | Massachusetts |
| 45 | Joseph Portelance | 41 | Head | Sign Painter | Massachusetts |
| 46 | Mary Portelance | 37 | Wife | — | Massachusetts |
| 47 | Joseph Portelance | 16 | Son | — | Massachusetts |
| 48 | William Portelance | 14 | Son | — | Massachusetts |
| 49 | Arthur Portelance | 12 | Son | — | Massachusetts |
| 50 | Blanche Henderson | 31 | Head | — | Massachusetts |
| 51 | Frances Henderson | 14 | Daughter | — | Massachusetts |
| 52 | Dorothy Henderson | 12 | Daughter | — | Massachusetts |
| 53 | Margaret Henderson THIS PERSON | 11 | Daughter | — | Massachusetts |
| 54 | Elaine Henderson | 10 | Daughter | — | Massachusetts |
| 55 | Joan Henderson | 9 | Daughter | — | Massachusetts |
| 56 | James Henderson | 8 | Son | — | Massachusetts |
| 57 | Sybil Henderson | 4 | Daughter | — | Massachusetts |
| 58 | Adon J. Powers | 64 | Head | Steam Shovel | Massachusetts |
| 59 | Ethel O. Powers | 59 | Wife | — | Massachusetts |
| 60 | Rodger B. Powers | 22 | Son | — | Massachusetts |
| 61 | Eva Goodhue | 28 | Daughter | Receptionist | Massachusetts |
| 62 | Jane Ann Powers | 21 | Daughter | Book Keeper | Massachusetts |
| 63 | Ethel C. Goodhue | 8 | Granddaughter | — | Massachusetts |
| 64 | Frank Lawton | 52 | Head | Drop Forger | England |
| 65 | Annie Lawton | 48 | Wife | — | England |
| 66 | Melvin Lawton | 18 | Son | — | Massachusetts |
| 67 | Muriel Lawton | 17 | Daughter | — | Massachusetts |
| 68 | John Lawton | 16 | Son | — | Massachusetts |
| 69 | Dorothy Lawton | 13 | Daughter | — | Massachusetts |
| 70 | Frank Lawton | 6 | Son | — | Massachusetts |
| 71 | Joseph H. Brown | 59 | Head | — | Massachusetts |
| 72 | Edith M. Brown | 56 | Wife | — | Massachusetts |
| 73 | Hollis E. Brown | 37 | Son | Accountant | Massachusetts |
| 74 | Lantie Timmons | 71 | Head | Seamstress | Massachusetts |
| 75 | Henry R. Miller | 87 | Father | — | Massachusetts |
| 76 | Alonzo Spencer | 56 | Head | Groomer | Massachusetts |
| 77 | Lucy Spencer | 57 | Wife | — | Massachusetts |
| 78 | Alvin Spencer | 24 | Son | Mgr. | Massachusetts |
| 79 | Catherine Garner | 75 | Head | — | Massachusetts |
| 80 | Evelyn Batchelder | 61 | Head | — | Massachusetts |
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)