IS
Ira Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, Pennsylvania
Our Model Tree links this Ira Smith across the 1920, 1930 and 1940 US Censuses in Lancaster-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Pennsylvania |
| Surname | Smith |
| Given Name | Ira |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | West Lampeter Twp. |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Painter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 700 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Painter |
| Township / Ward | West Lampeter Twp |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ira | Age | Birth yr |
|---|---|---|---|---|
| Ira Smith | Head | — | 31 | ~1909 |
| Glenn Smith | Son | — | 3 | ~1937 |
| Miriam Smith | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Lancaster, Pennsylvania
Son, age 12
Lancaster, Pennsylvania · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ira |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lancaster, Pennsylvania
Son, age 21
Lancaster, Pennsylvania · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ira |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lancaster-County, Pennsylvania
Head, age 31
Lancaster-County, Pennsylvania · implied b. ~1909 — 3 household members
| Surname | Smith |
| Given Name | Ira |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | West Lampeter Twp. |
| 1935 Residence (County) | Lancaster |
| Occupation | Painter |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 700 |
| Highest Grade | No 8 |
| 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 Ira Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Smith (~0.92 confidence) and father Harry Smith (~0.92 confidence) and mother Mabel Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Harry Smith
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mabel Smith
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ira Smith
Head · 1940 · age 31 · b. ~1909 · Pennsylvania
★ You are viewing this record
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-t0627-03535-00776)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Earl M. Shelly | 48 | Head | Farmer | Pennsylvania |
| 42 | Mary X. Shelly | 47 | Wife | — | Pennsylvania |
| 43 | Ezra H. Kreider | 83 | Head | Laborer | Pennsylvania |
| 44 | Lizzie H. Kreider | 78 | Wife | — | Pennsylvania |
| 45 | Meta M. Kreider | 47 | Daughter | Saleslady | Pennsylvania |
| 46 | George J. Norman | 37 | Head | Salesman | Pennsylvania |
| 47 | Pauline M. Norman | 35 | Wife | — | Pennsylvania |
| 48 | Joanne Norman | 15 | Daughter | — | Pennsylvania |
| 49 | William Norman | 10 | Son | — | Pennsylvania |
| 50 | Emanuel B. Ranck | 60 | Head | Laborer | Pennsylvania |
| 51 | Ada Ranck | 53 | Wife | — | Pennsylvania |
| 52 | Martin M. Ranck | 47 | Head | Manufacturer | Pennsylvania |
| 53 | Eva G. Ranck | 47 | Wife | — | Pennsylvania |
| 54 | Jean E. Ranck | 17 | Daughter | — | Pennsylvania |
| 55 | Patricia Ann Ranck | 8 | Daughter | — | Pennsylvania |
| 56 | Charles J. Kilburn | 33 | Head | Accountant | Pennsylvania |
| 57 | Ruth Kilburn | 31 | Wife | — | Pennsylvania |
| 58 | Mary Ruth Kilburn | 2 | Daughter | — | Pennsylvania |
| 59 | George Burkholder | 70 | Head | Foreman | Pennsylvania |
| 60 | Mabel R. Burkholder | 58 | Wife | — | Pennsylvania |
| 61 | Levi B. Guy | 62 | Head | Salesman | Pennsylvania |
| 62 | Bertha Guy | 57 | Wife | — | Pennsylvania |
| 63 | Evelyn A. Guy | 31 | Daughter | Waitress | Pennsylvania |
| 64 | George D. Eshleman | 32 | Head | Painting | Pennsylvania |
| 65 | Ethel M. Eshleman | 30 | Wife | Bookkeeper | Pennsylvania |
| 66 | Ira Smith THIS PERSON | 31 | Head | Painter | Pennsylvania |
| 67 | Miriam Smith | 26 | Wife | — | Pennsylvania |
| 68 | Glenn Smith | 3 | Son | — | Pennsylvania |
| 69 | Mary E. Keith | 53 | Head | Cook | Pennsylvania |
| 70 | Josephine Polignone | 15 | Boarder | — | Pennsylvania |
| 71 | Jean Eckhart | 15 | Boarder | — | Pennsylvania |
| 72 | Virginia Polignone | 14 | Boarder | — | Pennsylvania |
| 73 | Mary Armentine | 10 | Boarder | — | Pennsylvania |
| 74 | Samuel Heath | 39 | Head | Salesman | New Jersey |
| 75 | Edna Heath | 28 | Wife | — | New Jersey |
| 76 | Samuel Jr. Heath | 9 | Son | — | New Jersey |
| 77 | Norma Jean Heath | 6 | Daughter | — | New Jersey |
| 78 | Harold Heath | 5 | Son | — | New Jersey |
| 79 | Clyde B. Steiner | 21 | Head | Inspection | Pennsylvania |
| 80 | Kathryn Steiner | 22 | Wife | — | Pennsylvania |
Pedigree Summary
Ira
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)