MF
Mary Frank — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orange-County, California
Our Model Tree links this Mary Frank across the 1920, 1930 and 1940 US Censuses in Orange-County, California (XGBoost, ~Confirmed), with identified parents Emily & Emily — first a daughter (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orange-County, California |
| Surname | Frank |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Anaheim Twp |
| 1935 Residence (County) | Orange |
| Additional Details | |
| Occupation | Secretary |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Secretary |
| Township / Ward | Anaheim Twp |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Frank | Daughter | — | 21 | ~1919 |
| Christine Frank | Daughter | — | 19 | ~1921 |
| Ruth Frank | Daughter | — | 24 | ~1916 |
| Christopher Frank | Head | — | 55 | ~1885 |
| Emily Frank | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Orange, California
Daughter, age 1
Orange, California · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frank |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | England |
| Mother Tongue | English |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Orange, California
Daughter, age 11
Orange, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frank |
| Given Name | Mary E. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Germany |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Orange-County, California
Daughter, age 21
Orange-County, California · implied b. ~1919 — 5 household members
| Surname | Frank |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Anaheim Twp |
| 1935 Residence (County) | Orange |
| Occupation | Secretary |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 236 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Frank across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emily Frank (~0.92 confidence) and mother Emily Frank (~0.92 confidence) and father Christopher Frank (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emily Frank
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Emily Frank
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Christopher Frank
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Frank
Daughter · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Christine Frank
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Frank
Sibling · 1940 · age 24
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 — Orange-County, California
Open full size
1940 US Federal Census — Orange-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00271-00370)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty M. Valentine | 11 | Daughter | — | California |
| 2 | Lois Valentine | 5 | Daughter | — | California |
| 3 | Kenneth A. Valentine | 2 | Son | — | California |
| 4 | David J. Kluck | 65 | Head | — | Pennsylvania |
| 5 | Christopher Frank | 55 | Head | Reach | Germany |
| 6 | Emily Frank | 57 | Wife | — | England |
| 7 | Ruth Frank | 24 | Daughter | Clerical | California |
| 8 | Mary E. Frank THIS PERSON | 21 | Daughter | Secretary | California |
| 9 | Christine C. Frank | 19 | Daughter | Secretary | California |
| 10 | Clarence E. Dolle | 27 | Head | Laborer | Oklahoma |
| 11 | Laura M. Dolle | 22 | Wife | — | Oklahoma |
| 12 | Wayne E. Dolle | 1 | Son | — | California |
| 13 | Alvin R. Bush | 9 | Brother-in-law | — | Missouri |
| 14 | Orville Zedaker | 32 | Head | Driller Helper | Colorado |
| 15 | Winona Zedaker | 30 | Wife | — | Kentucky |
| 16 | Charm Zedaker | 12 | Daughter | — | California |
| 17 | Robert O. Zedaker | 8 | Son | — | California |
| 18 | Justin B. Zedaker | 2 | Son | — | California |
| 19 | M. O. Briggs | 47 | Head | Milker | Maryland |
| 20 | Mary Briggs | 36 | Wife | — | Maryland |
| 21 | M. J. Briggs | 13 | Son | — | California |
| 22 | Lillian Briggs | 5 | Daughter | — | California |
| 23 | Dick S. Van Dinkel | 25 | Head | Foreman | Iowa |
| 24 | Anna M. Van Dinkel | 19 | Wife | — | California |
| 25 | Derben C. Van Dinkel | 1 | Son | — | California |
| 26 | Sumner Van Dinkel | 22 | Brother | Ranchwork | Iowa |
| 27 | Edward Van Dinkel | 30 | Head | Milker | Iowa |
| 28 | Fredericka Van Dinkel | 27 | Wife | — | Iowa |
| 29 | Darwin Van Dinkel | 4 | Son | — | Iowa |
| 30 | John Vander Toorn | 25 | Head | Milker | Michigan |
| 31 | Marie Vander Toorn | 31 | Wife | — | Holland |
| 32 | Nellie J. Vander Toorn | 3 | Daughter | — | Michigan |
| 33 | John Jr. Vander Toorn | 1 | Son | — | California |
| 34 | Elizabeth Coulander | 26 | Maid | Maid | Iowa |
| 35 | Manuel E. Mancebo | 53 | Head | Farmer | Azores |
| 36 | Mary Mancebo | 45 | Wife | — | Azores |
| 37 | Manuel Mancebo | 23 | Son | Milker | California |
| 38 | Mary Fisher | 26 | Daughter | Milker | California |
| 39 | Rae Marie Fisher | 4 | Granddaughter | — | California |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 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)