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Bertha Smith — 1920 US Census Record
Model Tree available1920 United States Federal Census · Lehigh, Pennsylvania
Our Model Tree links this Bertha Smith across the 1900, 1910 and 1920 US Censuses in Lehigh, Pennsylvania (XGBoost, ~Confirmed), with identified parents Augustus & George — first a daughter (b.~1899), then head of a 4-person household.
Age 21
b. ~1899
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Lehigh, Pennsylvania |
| Surname | Smith |
| Given Name | Bertha M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Clerk |
| Industry | Insurance office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | City Of Allentown |
| Est. Birth Year | ~1899 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Smith | Daughter | — | 21 | ~1899 |
| Helen Smith | Daughter | — | 28 | ~1892 |
| Augustus Smith | Head | — | 57 | ~1863 |
| Mary Smith | Spouse | — | 57 | ~1863 |
Census Appearances
1900
Lehigh, Pennsylvania
Daughter, age 2
Lehigh, Pennsylvania · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Bertha M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Apr |
| Birth Year | 1898 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Lehigh, Pennsylvania
Daughter, age 11
Lehigh, Pennsylvania · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Bertha M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Lehigh, Pennsylvania
Daughter, age 21
Lehigh, Pennsylvania · implied b. ~1899 — 4 household members
| Surname | Smith |
| Given Name | Bertha M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Insurance office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Bertha Smith across 3 US Census years (1900, 1910 and 1920) in Lehigh, Pennsylvania, using XGBoost record linkage. Identified parents: father Augustus Smith (~0.92 confidence) and father George Smith (~0.92 confidence) and father Augustus Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence) and mother Mary Smith (~0.92 confidence) and mother Gertrude Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Augustus Smith
b. ~1863
Source father
● Household
· direct · ~0.92
Father
George Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Augustus Smith
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1863
Source mother
● Household
· direct · ~0.92
Mother
Mary Smith
b. ~1862
Source mother
● Household
· direct · ~0.92
Mother
Gertrude Smith
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Bertha Smith
Daughter · 1920 · age 21 · b. ~1899 · Pennsylvania
★ You are viewing this record
Sibling
Helen Smith
Sibling · 1920 · age 28
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
1920 US Federal Census — Lehigh, Pennsylvania
Open full size
1920 US Federal Census — Lehigh, Pennsylvania
Page Contents
47 people indexed on this census page (ia:1920:14thcensusofpopu1588unit:0630)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 53 | George | 52 | Head | Farmer | Pennsylvania |
| 55 | Linton T | 23 | Son | Weaver | Pennsylvania |
| 56 | Amanda E | 77 | Mother | Housework | Pennsylvania |
| 57 | La Rue | 40 | Aunt | Weaver | Pennsylvania |
| 58 | Isaac Underkoffler | 43 | Head | Roof Maker | Pennsylvania |
| 59 | Regina S Underkoffler | 42 | Wife | Housework | Pennsylvania |
| 60 | Gladys Underkoffler | 18 | Daughter | None | Pennsylvania |
| 61 | Elsie Underkoffler | 18 | Son | Laborer | Pennsylvania |
| 62 | Raymond Underkoffler | 15 | Son | Laborer | Pennsylvania |
| 63 | George Underkoffler | 13 | Son | None | Pennsylvania |
| 64 | Willard Underkoffler | 11 | Son | None | Pennsylvania |
| 65 | Lester Underkoffler | 5 | Son | None | Pennsylvania |
| 66 | John Ellman | 76 | Head | None | Germany |
| 67 | Kate Ellman | 58 | Wife | Housework | Pennsylvania |
| 68 | Florence A Ellman | 23 | Daughter | Clerk | Pennsylvania |
| 69 | Irene Ellman | 18 | Daughter | Clerk | Pennsylvania |
| 70 | Paul Ellman | 21 | Son | Carrier | Pennsylvania |
| 71 | Anna R Ellman | 21 | Daughter in law | Housework | New Jersey |
| 72 | George R Ellman | 1 | Grandson | None | Pennsylvania |
| 73 | Mary E Miller | 43 | Head | Housework | Pennsylvania |
| 74 | Ethel S Miller | 21 | Daughter | Cashier | Pennsylvania |
| 75 | Mary E Miller | 18 | Daughter | Assistant | Pennsylvania |
| 76 | Richard E Miller | 15 | Son | Office Boy | Pennsylvania |
| 77 | Eli H Reed | 27 | Head | Shoe Worker | Pennsylvania |
| 78 | Helen C Reed | 25 | Wife | Housework | Pennsylvania |
| 79 | Dorothy Reed | 7 | Daughter | None | Pennsylvania |
| 80 | Howard K Wolf | 53 | Head | Carpenter | Pennsylvania |
| 81 | Matilda Wolf | 51 | Wife | Housework | Pennsylvania |
| 82 | William Hilbert | 49 | Head | Firefighter | Pennsylvania |
| 83 | Alice J Hilbert | 47 | Wife | Housework | Pennsylvania |
| 84 | Carl P Dahl | 6 | Boarder | None | Pennsylvania |
| 85 | Cyrus H Rever | 47 | Head | Merchant | Pennsylvania |
| 86 | Sarah A Rever | 44 | Wife | Housework | Pennsylvania |
| 87 | Jessie R Rever | 20 | Daughter | Nurse | Pennsylvania |
| 88 | Augustus F Smith | 57 | Head | Druggist | Pennsylvania |
| 89 | Mary E Smith | 57 | Wife | Housework | Pennsylvania |
| 90 | Helen E Smith | 28 | Daughter | Clerk | Pennsylvania |
| 91 | Bertha M Smith THIS PERSON | 21 | Daughter | Clerk | Pennsylvania |
| 92 | George H Jr Welty | 42 | Head | Machinist | Pennsylvania |
| 93 | Sallie R Welty | 43 | Wife | Housework | Pennsylvania |
| 94 | Paul H Welty | 6 | Son | None | Pennsylvania |
| 95 | William S Schanberger | 35 | Brother in law | None | Pennsylvania |
| 96 | Anastasia Schanberger | 32 | Sister in law | Housework | Pennsylvania |
| 97 | Harry M Rock | 41 | Head | Weaver | Pennsylvania |
| 98 | Clementine E Rock | 48 | Wife | Housework | Pennsylvania |
| 99 | Roy J Donnelly | 22 | Head | Clerk | Pennsylvania |
| 100 | Florence A Donnelly | 26 | Wife | Housework | Pennsylvania |
Pedigree Summary
Bertha + 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 1920 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)