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Mildred Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Mildred Lewis across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents Upton — first a spouse (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Lewis |
| Given Name | Mildred M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 6 Catoctin |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 6 Catoctin |
| Est. Birth Year | ~1913 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Lewis | Head | — | 28 | ~1912 |
| Mildred Lewis | Spouse | — | 27 | ~1913 |
| Janet Lewis | Daughter | — | 9 | ~1931 |
| Lauren Lewis | Daughter | — | 5 | ~1935 |
| Ruthann Lewis | Daughter | — | 4 | ~1936 |
| Loretta Lewis | Daughter | — | 7 | ~1933 |
| Paul Lewis | Son | — | 1 | ~1939 |
Census Appearances
1920
Frederick, Maryland
Other, age 7
Frederick, Maryland · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mildred M. |
| Relationship to Head | Step-daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Daughter, age 17
Frederick, Maryland · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mildred M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| 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
Spouse, age 27
Frederick-County, Maryland · implied b. ~1913 — 7 household members
| Surname | Lewis |
| Given Name | Mildred M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 6 Catoctin |
| 1935 Residence (County) | Frederick |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Mildred Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Upton Lewis (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Upton Lewis
b. ~1857
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mildred Lewis
Spouse · 1940 · age 27 · b. ~1913 · Maryland
★ You are viewing this record
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-t0627-01548-00748)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alma M. Hays | 53 | Wife | — | Maryland |
| 2 | Earl G. Hays | 33 | Son | Laborer | Maryland |
| 3 | Clay R. Hays | 30 | Son | Timber Cutter | Maryland |
| 4 | Ralph Hays | 21 | Son | Laborer | Maryland |
| 5 | Thomas Hays | 19 | Son | Laborer | Maryland |
| 6 | Genevie Hays | 16 | Daughter | — | Maryland |
| 7 | Charles O. Harne | 57 | Head | Foreman | Maryland |
| 8 | Carrie S. Harne | 53 | Wife | — | Maryland |
| 9 | Jesse B. Harne | 33 | Son | Laborer | Maryland |
| 10 | Leon E. Harne | 23 | Son | Laborer | Maryland |
| 11 | Olive J. Harne | 20 | Daughter | — | Maryland |
| 12 | Harold G. Harne | 18 | Son | Laborer | Maryland |
| 13 | J. Floyd Harne | 16 | Son | — | Maryland |
| 14 | Basil E. Harne | 12 | Son | — | Maryland |
| 15 | Gerald L. Harne | 10 | Son | — | Maryland |
| 16 | Mabel M. Flock | 21 | Daughter | — | Maryland |
| 17 | Clarence R. Flock | 2 | Grandson | — | Maryland |
| 18 | Ernest M. Harne | 30 | Head | Timber Man | Maryland |
| 19 | Mollie M. Harne | 47 | Wife | — | Maryland |
| 20 | Esther B. Harne | 9 | Daughter | — | Maryland |
| 21 | Virgil A. Harne | 7 | Son | — | Maryland |
| 22 | Rudolph V. Harne | 4 | Son | — | Maryland |
| 23 | Kenneth C. Lewis | 28 | Head | Laborer | Maryland |
| 24 | Mildred M. Lewis THIS PERSON | 27 | Wife | — | Maryland |
| 25 | Janet A. Lewis | 9 | Daughter | — | Maryland |
| 26 | Loretta B. Lewis | 7 | Daughter | — | Maryland |
| 27 | Lauren C. Lewis | 5 | Daughter | — | Maryland |
| 28 | Ruthann M. Lewis | 4 | Daughter | — | Maryland |
| 29 | Paul L. Lewis | 1 | Son | — | Maryland |
| 30 | Walter L. Stottlemyer | 69 | Head | Farmer | Maryland |
| 31 | Annie C. Stottlemyer | 68 | Wife | — | Maryland |
| 32 | Naomi E. Stottlemyer | 42 | Daughter | — | Maryland |
| 33 | David E. Himes | 57 | Head | — | Maryland |
| 34 | Wolford W. Wolf | 30 | Head | Farmer | Maryland |
| 35 | Opal C. Wolf | 35 | Wife | — | Ohio |
| 36 | William W. Wolf | 6 | Son | — | Maryland |
| 37 | Vivian A. Wolf | 2 | Daughter | — | West Virginia |
| 38 | Zene S. Wolf | 1 | Son | — | Maryland |
| 39 | Earl M. Spong | 22 | Brother-in-law | Moulder Helper | Maryland |
| 40 | Nhae A. Spong | 24 | Sister | — | Maryland |
Pedigree Summary
Mildred
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)