HB
Helen Bailey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this Helen Bailey across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Pottsgrove |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 5 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Upper Pottsgrove |
| Est. Birth Year | ~1925 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Edith Bailey | Daughter | — | 17 | ~1923 |
| Betty Bailey | Daughter | — | 10 | ~1930 |
| Marie Bailey | Spouse | — | 51 | ~1889 |
| Henry Bailey | Son | — | 20 | ~1920 |
| Thomas Bailey | Son | — | 19 | ~1921 |
| Howard Bailey | Son | — | 16 | ~1924 |
| Edward Bailey | Head | — | 52 | ~1888 |
| Helen Bailey | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Montgomery, Pennsylvania
Daughter, age 5
Montgomery, Pennsylvania · implied b. ~1925 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| 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
Montgomery-County, Pennsylvania
Daughter, age 15
Montgomery-County, Pennsylvania · implied b. ~1925 — 8 household members
| Surname | Bailey |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Pottsgrove |
| 1935 Residence (County) | Montgomery |
| Income (1939) | 0 |
| Highest Grade | H 5 |
| 1935 Residence | Same house |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Bailey
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Howard Bailey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Bailey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Bailey
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Bailey
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty 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 — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03585-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah Yost | 22 | Wife | — | Pennsylvania |
| 42 | Mary Yost | 2 | Daughter | — | Pennsylvania |
| 43 | Martin G. Shafer | 29 | Head | Fireman | Pennsylvania |
| 44 | Katherine Shafer | 31 | Wife | — | Pennsylvania |
| 45 | Carl Shafer | 6 | Son | — | Pennsylvania |
| 46 | Edward Shafer | 0 | Son | — | Pennsylvania |
| 47 | Charles Bailey | 31 | Head | Dough Mixer | Pennsylvania |
| 48 | Florence Bailey | 26 | Wife | — | Pennsylvania |
| 49 | Jack Bailey | 5 | Son | — | Pennsylvania |
| 50 | Edward G. Bailey | 52 | Head | Truck Driver | Pennsylvania |
| 51 | Marie Bailey | 51 | Wife | — | Pennsylvania |
| 52 | Henry Bailey | 20 | Son | Drill Press Operator | Pennsylvania |
| 53 | Thomas Bailey | 19 | Son | Steel Picker | Pennsylvania |
| 54 | Edith Bailey | 17 | Daughter | New Worker | Pennsylvania |
| 55 | Howard Bailey | 16 | Son | — | Pennsylvania |
| 56 | Helen Bailey THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 57 | Betty Bailey | 10 | Daughter | — | Pennsylvania |
| 58 | Andrew Retzer | 37 | Head | Tool Maker | Pennsylvania |
| 59 | Anna Retzer | 37 | Wife | — | New York |
| 60 | Irene Retzer | 15 | Daughter | — | Pennsylvania |
| 61 | Betty Retzer | 14 | Daughter | — | Pennsylvania |
| 62 | Gloria Retzer | 11 | Daughter | — | Pennsylvania |
| 63 | James Retzer | 8 | Son | — | Pennsylvania |
| 64 | Annabelle Retzer | 4 | Daughter | — | Pennsylvania |
| 65 | Elizabeth Zumo | 34 | Sister-in-law | Sewing Machine Operator | Pennsylvania |
| 66 | Betty Zumo | 18 | Niece | New Worker | Pennsylvania |
| 67 | Irwin L. Romich | 37 | Head | Merchant Owner | Pennsylvania |
| 68 | Nellie Romich | 41 | Wife | — | Pennsylvania |
| 69 | Gordon Roeller | 19 | Nephew | Asst To Asst. Plant Manager | Pennsylvania |
| 70 | Russel R. Smith | 26 | Head | Machinist | Pennsylvania |
| 71 | Betty Smith | 21 | Wife | — | Pennsylvania |
| 72 | Betty J. Smith | 2 | Daughter | — | Pennsylvania |
| 73 | Norman Swoyer | 48 | Head | Ordinary Laborer | Pennsylvania |
| 74 | Viola Swoyer | 45 | Wife | — | Pennsylvania |
| 75 | John Swoyer | 16 | Son | — | Pennsylvania |
| 76 | Fred Swoyer | 13 | Son | — | Pennsylvania |
| 77 | Wayne Swoyer | 6 | Son | — | Pennsylvania |
| 78 | William H. Linsenbigler | 35 | Head | Painter | Pennsylvania |
| 79 | Lila Linsenbigler | 33 | Wife | — | Pennsylvania |
| 80 | William Linsenbigler | 15 | Son | — | Pennsylvania |
Related Census Records
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)