HB
Helen Bailey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fayette-County, Pennsylvania
Our Model Tree links this Helen Bailey across the 1920, 1930 and 1940 US Censuses in Fayette-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Stephen — first a daughter (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Pennsylvania |
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | German Twp |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Occupation | Servant |
| Industry | Apartment House |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 360 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Servant |
| Township / Ward | German Twp |
| Est. Birth Year | ~1912 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Steve Bailey | Head | — | 66 | ~1874 |
| Helen Bailey | Daughter | — | 28 | ~1912 |
| Steve Bailey | Son | — | 10 | ~1930 |
| John Harrischak | Other | — | 79 | ~1861 |
| Mary Bailey | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Fayette, Pennsylvania
Daughter, age 8
Fayette, Pennsylvania · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Fayette, Pennsylvania
Daughter, age 18
Fayette, Pennsylvania · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Fayette-County, Pennsylvania
Daughter, age 28
Fayette-County, Pennsylvania · implied b. ~1912 — 5 household members
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | German Twp |
| 1935 Residence (County) | Fayette |
| Occupation | Servant |
| Industry | Apartment House |
| Class of Worker | PW |
| Hours Worked | 7 |
| Income (1939) | 360 |
| Highest Grade | No 7 |
| 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 Helen Bailey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Bailey (~0.92 confidence) and father Stephen Bailey (~0.92 confidence) and father Steve Bailey (~0.92 confidence) and mother Della Bailey (~0.92 confidence) and mother Mary Bailey (~0.92 confidence) and mother Mary Bailey (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Bailey
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Stephen Bailey
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Steve Bailey
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Della Bailey
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Bailey
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Mary Bailey
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Bailey
Daughter · 1940 · age 28 · b. ~1912 · Pennsylvania
★ You are viewing this record
Sibling
Steve Bailey
Sibling · 1940 · age 10
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 — Fayette-County, Pennsylvania
Open full size
1940 US Federal Census — Fayette-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03504-00698)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Caroline Siernyega | 48 | Wife | — | Czechoslovakia |
| 2 | Julia Siernyega | 18 | Daughter | — | New Jersey |
| 3 | Josephine Siernyega | 14 | Daughter | — | Pennsylvania |
| 4 | Thomas Siernyega | 10 | Son | — | Pennsylvania |
| 5 | Joyce Siernyega | 5 | Daughter | — | Pennsylvania |
| 6 | John C. Albright | 43 | Head | Motorman | Pennsylvania |
| 7 | Gertrude Albright | 40 | Wife | — | Pennsylvania |
| 8 | William Albright | 19 | Son | Loader | Pennsylvania |
| 9 | Betty Jane Albright | 17 | Daughter | — | Pennsylvania |
| 10 | Nellie Louise Albright | 14 | Daughter | — | Pennsylvania |
| 11 | Mary K. Albright | 13 | Daughter | — | Pennsylvania |
| 12 | Steve Bailey | 66 | Head | — | Austria |
| 13 | Mary Bailey | 65 | Wife | — | Austria |
| 14 | Helen Bailey THIS PERSON | 28 | Daughter | Servant | Pennsylvania |
| 15 | Steve Bailey | 10 | Son | — | Pennsylvania |
| 16 | John Harrischak | 79 | Brother-in-law | — | Austria |
| 17 | Frank Michalik | 47 | Head | Digger | Moravia |
| 18 | Rosalie Michalik | 45 | Wife | — | Poland |
| 19 | Sophia Michalik | 23 | Daughter | Counter Girl | Pennsylvania |
| 20 | Stanley Michalik | 19 | Son | Digger | Pennsylvania |
| 21 | Edward S. Michalik | 13 | Son | — | Pennsylvania |
| 22 | Joseph Michalik | 76 | Father | — | Poland |
| 23 | Frank Boshonek | 27 | Son-in-law | Coal Cutter | Pennsylvania |
| 24 | Mary Boshonek | 24 | Daughter | — | Pennsylvania |
| 25 | Nathan Campbell | 44 | Head | Loader | Louisiana |
| 26 | Irola Campbell | 42 | Wife | — | Mississippi |
| 27 | Ruby Campbell | 9 | Daughter | — | Illinois |
| 28 | Steve Smith | 28 | Head | Trapper | Pennsylvania |
| 29 | Phyllis Smith | 18 | Wife | — | Pennsylvania |
| 30 | Mary Smith | 53 | Mother | — | Yugoslavia |
| 31 | John Smith | 14 | Brother | — | Pennsylvania |
| 32 | Martha Lilley | 79 | Head | — | Pennsylvania |
| 33 | Martha Lilley | 30 | Daughter | — | Pennsylvania |
| 34 | Antony Larus | 35 | Head | Day Worker | Poland |
| 35 | Rosie Larus | 33 | Wife | — | Poland |
| 36 | Marian Larus | 10 | Daughter | — | Pennsylvania |
| 37 | Rose Mary Larus | 8 | Daughter | — | Pennsylvania |
| 38 | Robert Malconforini | 59 | Head | Loader | Italy |
| 39 | Emma Malconforini | 53 | Wife | — | Italy |
| 40 | Sigee Malconforini | 23 | Daughter | New Worker | Pennsylvania |
Pedigree Summary
Helen + 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)