MA
Mary Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Mary Alexander across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents George & George — first a daughter (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carbondale city |
| 1935 Residence (County) | Lackawanna |
| Additional Details | |
| Occupation | Saleslady |
| Industry | Dry Cleaning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 270 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Saleslady |
| Township / Ward | Carbondale City |
| Est. Birth Year | ~1916 |
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 Alexander | Daughter | — | 24 | ~1916 |
| George Alexander | Head | — | 50 | ~1890 |
| John Alexander | Son | — | 21 | ~1919 |
| George Alexander | Son | — | 26 | ~1914 |
| Frances Alexander | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Lackawanna, Pennsylvania
Daughter, age 4
Lackawanna, Pennsylvania · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lackawanna, Pennsylvania
Daughter, age 14
Lackawanna, Pennsylvania · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| 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
Lackawanna-County, Pennsylvania
Daughter, age 24
Lackawanna-County, Pennsylvania · implied b. ~1916 — 5 household members
| Surname | Alexander |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carbondale city |
| 1935 Residence (County) | Lackawanna |
| Occupation | Saleslady |
| Industry | Dry Cleaning |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 270 |
| Highest Grade | H-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 Mary Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Alexander (~0.92 confidence) and father George Alexander (~0.92 confidence) and mother Frances Alexander (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Alexander
b. ~1887
Source father
● Household
· direct · ~0.92
Father
George Alexander
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Frances Alexander
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Alexander
Daughter · 1940 · age 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
John Alexander
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Alexander
Sibling · 1940 · age 26
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 — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03522-00762)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa (X) Jordan | 62 | Head | — | Pennsylvania |
| 2 | Elizabeth Jordan | 58 | Sister | — | Pennsylvania |
| 3 | Newell Stoddard | 53 | Head | Tool Maker | Pennsylvania |
| 4 | Mary (X) Stoddard | 53 | Wife | — | Pennsylvania |
| 5 | Easton Stoddard | 32 | Son | Jr Accountant | Pennsylvania |
| 6 | Elizabeth Stoddard | 31 | Daughter | Sales Lady | Pennsylvania |
| 7 | Michael Mayberry | 57 | Lodger | — | Pennsylvania |
| 8 | George M Alexander | 50 | Head | Painter | Pennsylvania |
| 9 | Frances (X) Alexander | 49 | Wife | — | Pennsylvania |
| 10 | George Jr. Alexander | 26 | Son | Painter | Pennsylvania |
| 11 | Mary Alexander THIS PERSON | 24 | Daughter | Saleslady | Pennsylvania |
| 12 | John Alexander | 21 | Son | Painter | Pennsylvania |
| 13 | Mary Heenan | 68 | Head | — | Pennsylvania |
| 14 | Raymond Heenan | 29 | Son | Brakeman | Pennsylvania |
| 15 | Leo Heenan | 35 | Son | Picking Machine | Pennsylvania |
| 16 | John (X) Conady | 70 | Head | W.P.A. Laborer | Pennsylvania |
| 17 | Mary Conady | 65 | Wife | — | England |
| 18 | James Cardon | 36 | Head | Motor Runner | Pennsylvania |
| 19 | Lucille (X) Cardon | 34 | Wife | — | Pennsylvania |
| 20 | Joan Cardon | 14 | Daughter | — | Pennsylvania |
| 21 | Lucille Cardon | 11 | Daughter | — | Pennsylvania |
| 22 | Edward J Cardon | 2 | Son | — | Pennsylvania |
| 23 | Jerome Cardon | 2 | Son | — | Pennsylvania |
| 24 | Thomas (X) Ruddy | 71 | Head | — | Pennsylvania |
| 25 | Mary Ruddy | 71 | Wife | — | Illinois |
| 26 | Patrick Crogan | 44 | Lodger | Plumber | Pennsylvania |
| 27 | Alice (X) Buckley | 59 | Head | — | Pennsylvania |
| 28 | Gerald Coleman | 31 | Son-in-law | Waiter | Pennsylvania |
| 29 | Nan Coleman | 26 | Daughter | — | Pennsylvania |
| 30 | Gerald Jr Coleman | 0 | Grandson | — | Pennsylvania |
| 31 | Thomas Toolan | 62 | Brother | Diamond Driller | Pennsylvania |
| 32 | Anthony Rock | 37 | Head | Mine Laborer | Pennsylvania |
| 33 | Victoria (X) Rock | 32 | Wife | — | Pennsylvania |
| 34 | Christmas Rock | 45 | Brother | Mine Laborer | Italy |
| 35 | Dominick Dolvicos | 35 | Head | Motor Runner | Pennsylvania |
| 36 | Mary (X) Dolvicos | 30 | Wife | — | Pennsylvania |
| 37 | Mary Dolvicos | 8 | Daughter | — | Pennsylvania |
| 38 | Pauline Dolvicos | 3 | Daughter | — | Pennsylvania |
| 39 | Edward (X) Philip | 32 | Head | Mine Laborer | Pennsylvania |
| 40 | Frances Philip | 29 | Wife | — | Pennsylvania |
Related Census Records
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)