RA
Ruth Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, Pennsylvania
Our Model Tree links this Ruth Alexander across the 1920, 1930 and 1940 US Censuses in Lancaster-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Pennsylvania |
| Surname | Alexander |
| Given Name | Ruth M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Manheim Borough |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Hair dresser |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 990 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Hair Dresser |
| Township / Ward | Manheim Borough |
| Est. Birth Year | ~1917 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| John Alexander | Son | — | 19 | ~1921 |
| Ruth Alexander | Daughter | — | 23 | ~1917 |
| John Alexander | Head | — | 51 | ~1889 |
| Mary Alexander | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Lancaster, Pennsylvania
Daughter, age 2
Lancaster, Pennsylvania · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lancaster, Pennsylvania
Daughter, age 11
Lancaster, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Ruth M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lancaster-County, Pennsylvania
Daughter, age 23
Lancaster-County, Pennsylvania · implied b. ~1917 — 4 household members
| Surname | Alexander |
| Given Name | Ruth M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Manheim Borough |
| 1935 Residence (County) | Lancaster |
| Occupation | Hair dresser |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 990 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Ruth Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Alexander (~0.92 confidence) and father John Alexander (~0.92 confidence) and father John Alexander (~0.92 confidence) and mother Mary Alexander (~0.92 confidence) and mother Mary Alexander (~0.92 confidence) and mother Mary Alexander (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Alexander
b. ~1889
Source father
● Household
· direct · ~0.92
Father
John Alexander
b. ~1888
Source father
● Household
· direct · ~0.92
Father
John Alexander
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Alexander
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Mary Alexander
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Mary Alexander
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Alexander
Daughter · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
John Alexander
Sibling · 1940 · age 19
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 — Lancaster-County, Pennsylvania
Open full size
1940 US Federal Census — Lancaster-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03533-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John E. Alexander | 51 | Head | Manager | Pennsylvania |
| 2 | Mary B. Alexander | 44 | Wife | — | Pennsylvania |
| 3 | Ruth M. Alexander THIS PERSON | 23 | Daughter | Hair Dresser | Pennsylvania |
| 4 | John E. Jr. Alexander | 19 | Son | Clerk | Pennsylvania |
| 5 | Earl Diehm | 32 | Head | Traffic Manager | Pennsylvania |
| 6 | Martha Diehm | 33 | Wife | — | Pennsylvania |
| 7 | Doris Diehm | 10 | Daughter | — | Pennsylvania |
| 8 | Marian Diehm | 5 | Daughter | — | Pennsylvania |
| 9 | Harmon Rohrer | 72 | Head | — | Pennsylvania |
| 10 | Annie G. Rohrer | 69 | Wife | — | Pennsylvania |
| 11 | Fred Cortright | 30 | Head | Twister | Pennsylvania |
| 12 | Catherine Cortright | 31 | Wife | — | Pennsylvania |
| 13 | Doris Cortright | 8 | Daughter | — | Pennsylvania |
| 14 | Gertie M. Heckel | 49 | Head | Cook | Pennsylvania |
| 15 | William H. Heckel | 51 | Brother | Laborer | Pennsylvania |
| 16 | George L. Heckel | 39 | Brother | Garbage Man | Pennsylvania |
| 17 | Jacob Gantz | 46 | Head | Garbage & Ash | Pennsylvania |
| 18 | Ella Gantz | 33 | Wife | — | Pennsylvania |
| 19 | Carl Gantz | 23 | Son | Operator | Pennsylvania |
| 20 | John Gantz | 16 | Son | Laborer | Pennsylvania |
| 21 | May Carl Gantz | 15 | Daughter | — | Pennsylvania |
| 22 | Jacob Jr. Gantz | 14 | Son | — | Pennsylvania |
| 23 | Beatrice Gantz | 13 | Daughter | — | Pennsylvania |
| 24 | Robert Gantz | 11 | Son | — | Pennsylvania |
| 25 | Leroy Gantz | 10 | Son | — | Pennsylvania |
| 26 | Elsie Gantz | 8 | Daughter | — | Pennsylvania |
| 27 | Betty Gantz | 5 | Daughter | — | Pennsylvania |
| 28 | Shirley Gantz | 4 | Daughter | — | Pennsylvania |
| 29 | Edward Gantz | 2 | Son | — | Pennsylvania |
| 30 | Leroy Nauman | 35 | Head | Carpenter | Pennsylvania |
| 31 | Harry Nauman | 65 | Father | Carpenter | Pennsylvania |
| 32 | Adell Nauman | 32 | Wife | — | Pennsylvania |
| 33 | Rushie, Nathan B. Nauman | 79 | Lodger | — | Pennsylvania |
| 34 | Leroy Jr. Nauman | 15 | Son | — | Pennsylvania |
| 35 | Robert Nauman | 13 | Son | — | Pennsylvania |
| 36 | Virginia Nauman | 7 | Son | — | Pennsylvania |
| 37 | Patsy De Forest | 2 | Foster Child | — | Pennsylvania |
| 38 | Benjamin Sener | 28 | Head | Farm Laborer | Pennsylvania |
| 39 | Esther Sener | 27 | Wife | Sewing | Pennsylvania |
| 40 | Richard Donald Sener | 9 | Son | — | Pennsylvania |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 6 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)