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 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 12-person household.
Age 20
b. ~1920
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Summers |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Middletown Election District 2 |
| Est. Birth Year | ~1920 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Summers | Daughter | — | 12 | ~1928 |
| Lida Summers | Daughter | — | 7 | ~1933 |
| Jane Summers | Daughter | — | 10 | ~1930 |
| Anna Summers | Daughter | — | 1 | ~1939 |
| Frances Summers | Daughter | — | 8 | ~1932 |
| Mary Summers | Daughter | — | 20 | ~1920 |
| Oscar Summers | Head | — | 43 | ~1897 |
| Oscar Summers | Other | — | 1 | ~1939 |
| Norman Summers | Son | — | 3 | ~1937 |
| Elwood Summers | Son | — | 22 | ~1918 |
| Oscar Summers | Son | — | 5 | ~1935 |
| Abigail Summers | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Frederick, Maryland
Daughter, age 9
Frederick, Maryland · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Margaret S. M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| 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
Daughter, age 20
Frederick-County, Maryland · implied b. ~1920 — 12 household members
| Surname | Summers |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Frederick |
| Highest Grade | H-4 |
| 1935 Residence | Maryland |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Summers
Daughter · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Frances Summers
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elwood Summers
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Summers
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Summers
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Summers
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lida Summers
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Summers
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Summers
Sibling · 1940 · age 1
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-t0627-01548-00592)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ray L. Harshman | 25 | Son | Carpenter | Maryland |
| 42 | Paul H. Ropp | 31 | Head | Farmer | Maryland |
| 43 | Dorothy E. Ropp | 27 | Wife | — | Maryland |
| 44 | Paul H. Jr. Ropp | 2 | Son | — | Maryland |
| 45 | Barbara A. Ropp | 1 | Daughter | — | Maryland |
| 46 | Marshall L. Ropp | 35 | Brother | Farmer | Maryland |
| 47 | Mary Ella Ropp | 63 | Mother | — | Maryland |
| 48 | Oscar M. Summers | 43 | Head | Laborer | Maryland |
| 49 | Abigail Summers | 36 | Wife | — | Maryland |
| 50 | Elwood L. Summers | 22 | Son | Farmer | Maryland |
| 51 | Mary E. Summers THIS PERSON | 20 | Daughter | — | Maryland |
| 52 | Ruth L. Summers | 12 | Daughter | — | Maryland |
| 53 | Jane H. Summers | 10 | Daughter | — | Maryland |
| 54 | Frances J. Summers | 8 | Daughter | — | Maryland |
| 55 | Lida B. Summers | 7 | Daughter | — | Maryland |
| 56 | Oscar F. Summers | 5 | Son | — | Maryland |
| 57 | Norman G. Summers | 3 | Son | — | Maryland |
| 58 | Anna E. Summers | 1 | Daughter | — | Maryland |
| 59 | Oscar E. Summers | 1 | Grandson | — | Maryland |
| 60 | Thomas J. Rollins | 46 | Head | Farmer | Maryland |
| 61 | Casie W. Remsburg | 56 | Brother-in-law | Day Laborer | Maryland |
| 62 | Harry Remsburg | 34 | Head | Painter | Maryland |
| 63 | Alma E. Remsburg | 30 | Wife | — | Maryland |
| 64 | Harry W. Remsburg | 12 | Son | — | Maryland |
| 65 | Susie F. Remsburg | 9 | Daughter | — | Maryland |
| 66 | Charles W. Remsburg | 4 | Son | — | Maryland |
| 67 | Mary M. Remsburg | 2 | Daughter | — | Maryland |
| 68 | George H. Sigler | 37 | Head | Truck Driver | Maryland |
| 69 | Mary E. Sigler | 35 | Wife | — | Maryland |
| 70 | Charles L. Sigler | 12 | Son | — | Maryland |
| 71 | Anna M. Sigler | 11 | Daughter | — | Maryland |
| 72 | George H. Sigler | 10 | Son | — | Maryland |
| 73 | Raymond W. Sigler | 5 | Son | — | Maryland |
| 74 | Alice L. Sigler | 4 | Daughter | — | Maryland |
| 75 | Charles E. Crouse | 27 | Head | Painter | Maryland |
| 76 | Flora B. Crouse | 25 | Wife | — | Maryland |
| 77 | Meredith E. Crouse | 5 | Son | — | Maryland |
| 78 | Ronald L. Crouse | 4 | Son | — | Maryland |
| 79 | Charles J. Crouse | 3 | Son | — | Maryland |
| 80 | Thomas J. Lee | 49 | Head | Day Laborer | Pennsylvania |
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)