MG
Margaret Green — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harford-County, Maryland
Our Model Tree links this Margaret Green across the 1930 and 1940 US Censuses in Harford-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 13-person household.
Age 24
b. ~1916
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harford-County, Maryland |
| Surname | Green |
| Given Name | Margaret A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Bel Air |
| 1935 Residence (County) | Harford |
| Additional Details | |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Bel Air |
| Est. Birth Year | ~1916 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Myrtle Green | Daughter | — | 17 | ~1923 |
| Anne Green | Daughter | — | 8 | ~1932 |
| Margaret Green | Daughter | — | 24 | ~1916 |
| Thelma Green | Daughter | — | 18 | ~1922 |
| Grover Green | Head | — | 52 | ~1888 |
| Florence Green | Other | — | 62 | ~1878 |
| Eugene Green | Son | — | 11 | ~1929 |
| John Green | Son | — | 8 | ~1932 |
| Kylie Green | Son | — | 14 | ~1926 |
| Grover Green | Son | — | 22 | ~1918 |
| Robert Green | Son | — | 6 | ~1934 |
| William Green | Son | — | 16 | ~1924 |
| Annie Green | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Harford, Maryland
Daughter, age 14
Harford, Maryland · implied b. ~1916 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Green |
| Given Name | Margaret A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Harford-County, Maryland
Daughter, age 24
Harford-County, Maryland · implied b. ~1916 — 13 household members
| Surname | Green |
| Given Name | Margaret A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Bel Air |
| 1935 Residence (County) | Harford |
| Highest Grade | C 5 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Green across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Green
Daughter · 1940 · age 24 · b. ~1916 · Maryland
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Sibling
Kylie Green
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Green
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Green
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grover Green
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Green
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Green
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Green
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Green
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Green
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 — Harford-County, Maryland
Open full size
1940 US Federal Census — Harford-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01551-00355)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grover C Green | 52 | Head | Executive | North Carolina |
| 42 | Annie Green | 49 | Wife | — | North Carolina |
| 43 | Margaret A Green THIS PERSON | 24 | Daughter | — | Maryland |
| 44 | Grover Jr Green | 22 | Son | — | North Carolina |
| 45 | Thelma A Green | 18 | Daughter | — | Maryland |
| 46 | Myrtle A Green | 17 | Daughter | — | Maryland |
| 47 | William Green | 16 | Son | — | Maryland |
| 48 | Kylie Green | 14 | Son | — | Maryland |
| 49 | Eugene Green | 11 | Son | — | Maryland |
| 50 | John Green | 8 | Son | — | Maryland |
| 51 | Anne Green | 8 | Daughter | — | Maryland |
| 52 | Robert Green | 6 | Son | — | Maryland |
| 53 | Florence Green | 62 | Sister-in-law | — | North Carolina |
| 54 | Carroll Tilly | 31 | Head | Clerk | Virginia |
| 55 | Margaret Tilly | 27 | Wife | — | Maryland |
| 56 | Barbara Tilly | 1 | Daughter | — | Maryland |
| 57 | Agnes B Carter | 71 | Head | Proprietress | Maryland |
| 58 | Morris Maynadier | 67 | Lodger | Banker | Maryland |
| 59 | Elsie Heiser | 37 | Lodger | Clerk | Maryland |
| 60 | Lewis Smith | 24 | Lodger | Plumber | Maryland |
| 61 | Gladys Hulabert | 19 | Lodger | Stenographer | Maryland |
| 62 | Elisa Gross | 21 | Lodger | Stenographer | Virginia |
| 63 | George Wheeler | 47 | Head | Mechanical Engineer | Nebraska |
| 64 | Nora Wheeler | 42 | Wife | — | Kansas |
| 65 | Max Wheeler | 14 | Son | — | Missouri |
| 66 | Eileen Wheeler | 10 | Daughter | — | Kansas |
| 67 | Dean Wheeler | 9 | Son | — | Ohio |
| 68 | Milton Knight | 58 | Head | School Superintendent | Maryland |
| 69 | Bertha Knight | 57 | Wife | — | Maryland |
| 70 | Mary Knight | 24 | Daughter | Teacher | Maryland |
| 71 | Elizabeth Knight | 16 | Daughter | — | Maryland |
| 72 | Mary Martien | 65 | Sister-in-law | Stenographer | Maryland |
| 73 | Kathleen Delp | 28 | Head | Stenographer | Virginia |
| 74 | Richard Jr. Delp | 9 | Son | — | Maryland |
| 75 | Grover Delp | 1 | Son | — | Maryland |
| 76 | Nora Half | 17 | Maid | Housemaid | Virginia |
| 77 | Stewart Stacy | 42 | Head | Lawyer | Maryland |
| 78 | Lorraine Stacy | 33 | Wife | — | Maryland |
| 79 | Barbara Stacy | 8 | Daughter | — | Maryland |
| 80 | Elizabeth Stacy | 5 | Daughter | — | Maryland |
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)