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Helen Mccarthy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Helen Mccarthy across the 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 10-person household.
Age 22
b. ~1908
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | McCarthy |
| Given Name | Helen C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Operator |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1908 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Ethel Mccarthy | Daughter | — | 19 | ~1911 |
| Madeline Mccarthy | Daughter | — | 16 | ~1914 |
| Charles Mccarthy | Son | — | 11 | ~1919 |
| Bessie Mccarthy | Spouse | — | 43 | ~1887 |
| Frank Lachman | Other | — | 26 | ~1904 |
| Elizabeth Lachman | Spouse | — | 22 | ~1908 |
| Charles Mccarthy | Head | — | 53 | ~1877 |
| John Lachman | Son | — | 1 | ~1929 |
| Helen Mccarthy | Daughter | — | 22 | ~1908 |
| Virginia Lachman | Daughter | — | 3 | ~1927 |
Census Appearances
1920
Philadelphia, Pennsylvania
Daughter, age 12
Philadelphia, Pennsylvania · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCarthy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 22
Philadelphia, Pennsylvania · implied b. ~1908 — 10 household members
| Surname | McCarthy |
| Given Name | Helen C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | 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 Helen Mccarthy across 2 US Census years (1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mccarthy
Daughter · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
John Lachman
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Mccarthy
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mccarthy
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Mccarthy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Lachman
Sibling · 1930 · age 3
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
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2134:0466)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William F Cooney | 42 | Head | Foreman | Pennsylvania |
| 2 | Margaret Cooney | 37 | Wife | — | Pennsylvania |
| 3 | Katie Cooney | 10 | Daughter | — | Pennsylvania |
| 4 | Eileen Cooney | 5 | Daughter | — | Pennsylvania |
| 5 | Florence Cooney | 44 | Aunt | — | Pennsylvania |
| 6 | George L Mcguigan | 37 | Head | Tool Maker | Pennsylvania |
| 7 | Margaret Mcguigan | 37 | Wife | — | Nebraska |
| 8 | George L Jr Mcguigan | 13 | Son | — | Pennsylvania |
| 9 | Joseph J Mcguigan | 30 | Head | Conductor | Pennsylvania |
| 10 | Alice M Mcguigan | 34 | Wife | — | Pennsylvania |
| 11 | Joseph J Jr Mcguigan | 5 | Son | — | Pennsylvania |
| 12 | Laura F Bittner | 29 | Sister | Secretary | Pennsylvania |
| 13 | John J Nugent | 41 | Head | Mason | New Jersey |
| 14 | Margaret P Nugent | 41 | Wife | — | Pennsylvania |
| 15 | John P Nugent | 10 | Son | — | Pennsylvania |
| 16 | Katherine E Nugent | 6 | Daughter | — | Pennsylvania |
| 17 | Charles W Mccarthy | 53 | Head | Clerk | Pennsylvania |
| 18 | Bessie A Mccarthy | 43 | Wife | — | Pennsylvania |
| 19 | Helen C Mccarthy THIS PERSON | 22 | Daughter | Operator | Pennsylvania |
| 20 | Ethel A Mccarthy | 19 | Daughter | Stenographer | Pennsylvania |
| 21 | Madeline M Mccarthy | 16 | Daughter | — | Pennsylvania |
| 22 | Charles Mccarthy | 11 | Son | — | Pennsylvania |
| 23 | Frank E Lachman | 26 | Son-in-law | Mechanic | Pennsylvania |
| 24 | Elizabeth Lachman | 22 | Wife | — | Pennsylvania |
| 25 | Virginia Lachman | 3 | Daughter | — | Pennsylvania |
| 26 | John E Lachman | 1 | Son | — | Pennsylvania |
| 27 | Charles Mcdevitt | 35 | Head | Clerk | Pennsylvania |
| 28 | Edith Mcdevitt | 37 | Wife | — | Pennsylvania |
| 29 | Mildred Mcdevitt | 16 | Daughter | — | Pennsylvania |
| 30 | James Mcdevitt | 15 | Son | — | Pennsylvania |
| 31 | Edith Mcdevitt | 13 | Daughter | — | Pennsylvania |
| 32 | John Mcdevitt | 11 | Son | — | Pennsylvania |
| 33 | John J Lynch | 28 | Head | Mechanic | Pennsylvania |
| 34 | Marie M Lynch | 22 | Wife | — | Pennsylvania |
| 35 | John J Jr Lynch | 0 | Son | — | Pennsylvania |
| 36 | John Handel | 54 | Father | Baker | Germany |
| 37 | Elizabeth Handel | 44 | Mother | — | Germany |
| 38 | John Handel | 20 | Son | Mechanic | Pennsylvania |
| 39 | Hugh A Wilson | 62 | Head | Printer | Pennsylvania |
| 40 | Alice E Wilson | 61 | Wife | — | Pennsylvania |
| 41 | Katherine Clynes | 69 | Sister-in-law | — | England |
| 42 | Charles G Marcon | 34 | Head | Salesman | New York |
| 43 | Iona Marcon | 39 | Wife | — | Pennsylvania |
| 44 | Walter P Shivers | 12 | Son | Mechanic | Pennsylvania |
| 45 | Sarah Rubish | 72 | Mother-in-law | — | Pennsylvania |
| 46 | Robert C Kremer | 39 | Head | Operator | Pennsylvania |
| 47 | Mollie E Kremer | 33 | Wife | — | Pennsylvania |
| 48 | Robert C Jr Kremer | 12 | Son | — | Pennsylvania |
| 49 | Herbert Kremer | 10 | Son | — | Pennsylvania |
| 50 | Charles J Kremer | 2 | Son | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)