MS
Mary Summers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Mary Summers across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Summers |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Braddock Election District 24 |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Braddock Election District 24 |
| Est. Birth Year | ~1886 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Baker | Daughter | — | 28 | ~1912 |
| Charlotte Summers | Daughter | — | 17 | ~1923 |
| George Summers | Head | — | 58 | ~1882 |
| Mary Summers | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Frederick, Maryland
Spouse, age 32
Frederick, Maryland · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Other, age 44
Frederick, Maryland · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Mary E |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Spouse, age 54
Frederick-County, Maryland · implied b. ~1886 — 4 household members
| Surname | Summers |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Braddock Election District 24 |
| 1935 Residence (County) | Frederick |
| Highest Grade | No 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 Mary Summers across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Summers
Spouse · 1940 · age 54 · b. ~1886 · Maryland
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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-t0627-01549-00630)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roland O Smith | 34 | Head | Laborer | Maryland |
| 2 | Beatrice R Smith | 32 | Wife | — | Maryland |
| 3 | Betty Lou Smith | 6 | Daughter | — | Maryland |
| 4 | Charles E Jackson | 81 | Head | — | Maryland |
| 5 | Flora V Jackson | 80 | Wife | — | Maryland |
| 6 | Clinton E Smith | 73 | Head | Operator | Maryland |
| 7 | Maggie E Smith | 71 | Wife | — | Maryland |
| 8 | Howard T Palmer | 30 | Head | Agriculture Engineer | Iowa |
| 9 | Jeanette F Palmer | 31 | Wife | — | Nebraska |
| 10 | Phillip G Palmer | 4 | Son | — | Nebraska |
| 11 | George S Summers | 58 | Head | Carpenter | Maryland |
| 12 | Mary E Summers THIS PERSON | 54 | Wife | — | Maryland |
| 13 | Charlotte E Summers | 17 | Daughter | Typist | Maryland |
| 14 | Mary R Baker | 28 | Daughter | — | Maryland |
| 15 | Charles H Grove | 66 | Head | Operator | Maryland |
| 16 | Annie Grove | 53 | Wife | — | Maryland |
| 17 | William P Halter | 72 | Head | Operator | Maryland |
| 18 | Fannie L Halter | 69 | Wife | — | Maryland |
| 19 | Hazel Halter | 42 | Daughter | Teacher | Maryland |
| 20 | Ruth K Halter | 32 | Daughter | Teacher | Maryland |
| 21 | Mary W Halter | 30 | Daughter | Teacher | Maryland |
| 22 | Frances E Halter | 23 | Daughter | — | Maryland |
| 23 | William Burns | 53 | Laborer | Laborer | Maryland |
| 24 | Earl H. N. Mercer | 36 | Head | Foreman | Maryland |
| 25 | Dorothy G Mercer | 34 | Wife | — | Maryland |
| 26 | Earl H. N. Mercer | 10 | Son | — | Maryland |
| 27 | Beverly L Mercer | 7 | Daughter | — | Maryland |
| 28 | Teddy T Mercer | 6 | Son | — | Maryland |
| 29 | Martin P Mahoney | 56 | Head | Carpenter | Maryland |
| 30 | Grace B Mahoney | 51 | Wife | — | Maryland |
| 31 | Mary L Mahoney | 16 | Daughter | — | Maryland |
| 32 | Clarence M Phleeger | 74 | Head | Operator | Maryland |
| 33 | Fannie Phleeger | 72 | Wife | — | Maryland |
| 34 | Ida V Phleeger | 42 | Daughter | Book Keeper | Maryland |
| 35 | Bessie G Keefer | 44 | Daughter | Book Keeper | Maryland |
| 36 | Howard E Riddlemoser | 62 | Head | Nightwatchman | Maryland |
| 37 | Emma F Riddlemoser | 64 | Wife | — | Maryland |
| 38 | Melval K Riddlemoser | 19 | Son | Washer Operator | Maryland |
| 39 | Wilfred R. L. Kaufman | 30 | Head | Mechanic | Maryland |
| 40 | Katherine A Kaufman | 29 | Wife | — | 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)