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Margaret Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Margaret Alexander across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Alexander |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Middletown Town |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Middletown Town |
| Est. Birth Year | ~1928 |
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 |
|---|---|---|---|---|
| Kathern Alexander | Daughter | — | 16 | ~1924 |
| Guy Alexander | Head | — | 43 | ~1897 |
| Margaret Alexander | Daughter | — | 12 | ~1928 |
| James Alexander | Son | — | 11 | ~1929 |
| Geneva Alexander | Daughter | — | 14 | ~1926 |
| Guy Alexander | Son | — | 8 | ~1932 |
| Winifred Alexander | Daughter | — | 15 | ~1925 |
| Alpha Alexander | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Frederick, Maryland
Daughter, age 2
Frederick, Maryland · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Daughter, age 12
Frederick-County, Maryland · implied b. ~1928 — 8 household members
| Surname | Alexander |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Middletown Town |
| 1935 Residence (County) | Frederick |
| Highest Grade | 7 |
| 1935 Residence | Same house |
| 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 Alexander across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Alexander
Daughter · 1940 · age 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Geneva Alexander
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathern Alexander
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Alexander
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Alexander
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Guy Alexander
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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00559)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James H. Haupt | 38 | Head | Servant | Maryland |
| 2 | Gladys Villalotto | 16 | Maid | Servant | Maryland |
| 3 | Guy F. Alexander | 43 | Head | Miner | Maryland |
| 4 | Alpha M. Alexander | 37 | Wife | — | Maryland |
| 5 | Geneva Alexander | 14 | Daughter | — | Maryland |
| 6 | Kathern E. Alexander | 16 | Daughter | Servant | Maryland |
| 7 | Winifred M. Alexander | 15 | Daughter | — | Maryland |
| 8 | Margaret L. Alexander THIS PERSON | 12 | Daughter | — | Maryland |
| 9 | James F. Alexander | 11 | Son | — | Maryland |
| 10 | Guy F. Jr. Alexander | 8 | Son | — | Maryland |
| 11 | Ervin D. Rice | 34 | Head | Barber | Maryland |
| 12 | Nellie L. Rice | 33 | Wife | — | Maryland |
| 13 | Beddy J. Rice | 12 | Daughter | — | Maryland |
| 14 | Dale Jones | 38 | Head | House Painter | Maryland |
| 15 | Margie M. Jones | 26 | Wife | — | Maryland |
| 16 | June E. Jones | 11 | Daughter | — | Maryland |
| 17 | Mary L. Jones | 5 | Daughter | — | Maryland |
| 18 | James C. Jones | 3 | Son | — | Maryland |
| 19 | Grayson L. Main | 40 | Head | Driver | Maryland |
| 20 | Francis G. Main | 44 | Wife | — | Maryland |
| 21 | Janet L. Main | 14 | Daughter | — | Maryland |
| 22 | Vincent H. Flash | 21 | Boarder | — | Maryland |
| 23 | Mary J. Flash | 58 | Boarder | — | Maryland |
| 24 | Cl. Lymardone | 62 | Head | — | Maryland |
| 25 | Frank H. Rudy | 62 | Head | Waiter | Maryland |
| 26 | Mamie R. Rudy | 62 | Wife | — | Maryland |
| 27 | Mary C. Kefler | 64 | Head | — | Maryland |
| 28 | Sherman S. Beachley | 76 | Boarder | — | Maryland |
| 29 | George D. Miller | 37 | Head | Laborer | Maryland |
| 30 | Pearl C. Miller | 31 | Wife | — | Maryland |
| 31 | Evelyn F. Miller | 11 | Daughter | — | Maryland |
| 32 | Donald L. Miller | 2 | Son | — | Maryland |
| 33 | William C. Lutz | 58 | Head | Labor | Maryland |
| 34 | Rosa Mae Lutz | 40 | Wife | — | Maryland |
| 35 | Dorotha M. Lutz | 10 | Daughter | — | Maryland |
| 36 | Alva P. Shafer | 47 | Head | — | Maryland |
| 37 | Maud Shafer | 54 | Sister | — | Maryland |
| 38 | Latta R. Shafer | 52 | Sister | — | Maryland |
| 39 | Bessie V. Shafer | 53 | Sister | — | Maryland |
| 40 | Sophie Derr | 71 | Head | — | 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)