IS
Ida Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Ida Simmons across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Simmons |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1924 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Margaret Simmons | Daughter | — | 22 | ~1918 |
| Minnie Simmons | Spouse | — | 46 | ~1894 |
| Ida Simmons | Daughter | — | 16 | ~1924 |
| Edna Simmons | Daughter | — | 19 | ~1921 |
| Andrew Simmons | Head | — | 53 | ~1887 |
| Robert Simmons | Son | — | 11 | ~1929 |
| Andrew Simmons | Son | — | 18 | ~1922 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 16
Allegheny-County, Pennsylvania · implied b. ~1924 — 7 household members
| Surname | Simmons |
| Given Name | Ida |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | Hs 1 |
| 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 Ida Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Simmons
Daughter · 1940 · age 16 · b. ~1924 · Pennsylvania
★ You are viewing this record
Sibling
Robert Simmons
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Simmons
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Simmons
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Simmons
Sibling · 1940 · age 22
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03667-00478)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cornelia Arnett | 56 | Lodger | Domestic | Pennsylvania |
| 2 | Ella Williams | 24 | Niece | House Maid | Pennsylvania |
| 3 | Laura Brown | 40 | Sister | Laundress | Pennsylvania |
| 4 | Ralph Strange | 31 | Boarder | Janitor | Pennsylvania |
| 5 | Andrew J. Simmons | 53 | Head | Helper | Pennsylvania |
| 6 | Minnie Simmons | 46 | Wife | — | Ohio |
| 7 | Margaret Simmons | 22 | Daughter | Waitress | Pennsylvania |
| 8 | Edna V. Simmons | 19 | Daughter | New Worker | Pennsylvania |
| 9 | Andrew Jr. Simmons | 18 | Son | Delivery Boy | Pennsylvania |
| 10 | Ida Simmons THIS PERSON | 16 | Daughter | — | Pennsylvania |
| 11 | Robert Simmons | 11 | Son | — | Pennsylvania |
| 12 | Mark Baone | 61 | Head | Laborer | Austria |
| 13 | Catherine Baone | 59 | Wife | — | Austria |
| 14 | John Meeks | 51 | Head | Proprietor | Pennsylvania |
| 15 | Mary C. Meeks | 49 | Wife | — | Pennsylvania |
| 16 | Bernice Pelkey | 36 | Head | New Worker | Pennsylvania |
| 17 | Eleanor Pelkey | 18 | Daughter | Waitress | Pennsylvania |
| 18 | Ruth Pelkey | 17 | Daughter | — | Pennsylvania |
| 19 | Raymond Pelkey | 15 | Son | — | Pennsylvania |
| 20 | Betty Jane Pelkey | 11 | Daughter | — | Pennsylvania |
| 21 | Donald Pelkey | 6 | Son | — | Pennsylvania |
| 23 | Wallace B. Maxwell | 46 | Head | Auto Mechanic | Pennsylvania |
| 24 | Florence Maxwell | 50 | Wife | — | Pennsylvania |
| 25 | H. Craig Maxwell | 10 | Son | — | Pennsylvania |
| 26 | Joseph Macera | 79 | Head | Proprietor | Italy |
| 27 | Louisa Macera | 73 | Wife | Proprietress | Pennsylvania |
| 28 | Samuel Lewis | 40 | Head | Operator | W. Virginia |
| 29 | Louella Lewis | 40 | Wife | — | W. Virginia |
| 30 | Louis Savilla | 51 | Head | Shovel Man | Pennsylvania |
| 31 | Anna Savilla | 44 | Wife | — | Pennsylvania |
| 32 | Louis W. Savilla | 25 | Son | Clerk | Pennsylvania |
| 33 | Mary Jane Savilla | 14 | Daughter-in-law | — | Pennsylvania |
| 34 | Joseph Savilla | 28 | Head | Timekeeper | Pennsylvania |
| 35 | Irene Savilla | 26 | Wife | — | Poland |
| 36 | Robert Savilla | 2 | Son | — | Pennsylvania |
| 37 | Patricia Savilla | 0 | Daughter | — | Pennsylvania |
| 38 | Frank Ober | 30 | Head | Truck Driver | Pennsylvania |
| 39 | Rose Ober | 25 | Wife | — | Pennsylvania |
| 40 | William Ober | 7 | Son | — | Pennsylvania |
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)