WM
William Mcdowell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this William Mcdowell across the 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 4-person household.
Age 49
b. ~1881
Male
Head
Born: Delaware
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | McDowell |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 4V8V |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Occupation | Expressman |
| Industry | Hauling |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | 35 |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Expressman |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1881 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mcdowell | Head | — | 49 | ~1881 |
| Norman Mcdowell | Son | — | 17 | ~1913 |
| John Mcdowell | Son | — | 20 | ~1910 |
| Mary Mcdowell | Spouse | — | 45 | ~1885 |
Census Appearances
1920
Philadelphia, Pennsylvania
Head, age 37
Philadelphia, Pennsylvania · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDowell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Policeman |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Philadelphia, Pennsylvania
Head, age 49
Philadelphia, Pennsylvania · implied b. ~1881 — 4 household members
| Surname | McDowell |
| Given Name | William F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 4V8V |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Expressman |
| Industry | Hauling |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | 35 |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 William Mcdowell across 2 US Census years (1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
William Mcdowell
Head · 1930 · age 49 · b. ~1881 · Pennsylvania
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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
51 people indexed on this census page (ia:1930:fifteenthcensus00reel2105:0153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank M. Plotz | 49 | Head | Machinist | Pennsylvania |
| 2 | Elizabeth C. Plotz | 48 | Wife | — | New Jersey |
| 3 | E. Mildred Plotz | 18 | Daughter | Operator | Pennsylvania |
| 4 | Marion E. Plotz | 14 | Daughter | — | Pennsylvania |
| 5 | Frank M. Jr. Plotz | 13 | Son | — | Pennsylvania |
| 6 | William H. Ingler | 49 | Head | Clerk-Investigator | Pennsylvania |
| 7 | Elizabeth Ingler | 44 | Wife | — | Pennsylvania |
| 8 | Florence Ingler | 13 | Daughter | — | Pennsylvania |
| 9 | William H. Jr. Ingler | 24 | Son | Clerk | Pennsylvania |
| 10 | Mildred Ingler | 22 | Daughter | — | Pennsylvania |
| 11 | Edward Bateman | 54 | Head | Roofer | Pennsylvania |
| 12 | Caroline Bateman | 50 | Wife | Stenographer | Germany |
| 13 | Howard H. Bateman | 21 | Son | Janitor | Pennsylvania |
| 14 | Thomas C. Robbins | 74 | Head | Complaint Clerk | Pennsylvania |
| 15 | Emma Robbins | 45 | Daughter | — | Pennsylvania |
| 16 | Walter Robbins | 30 | Son | Folder | Pennsylvania |
| 17 | Joseph Robbins | 27 | Son | Tinsmith | Pennsylvania |
| 18 | Joseph P. Cavanaugh | 65 | Head | Gardener | Pennsylvania |
| 19 | Anna Cavanaugh | 31 | Daughter | Janitor | Pennsylvania |
| 20 | Alvino Palumbo | 27 | Head | — | Italy |
| 21 | Helen Palumbo | 25 | Wife | Plasterer | Pennsylvania |
| 22 | John F. Melvin | 44 | Head | Janitor | Scotland |
| 23 | Robina Melvin | 46 | Wife | Housework | Scotland |
| 24 | Margaret F. Melvin | 14 | Daughter | — | Scotland |
| 25 | Agnes W. Melvin | 10 | Daughter | — | Scotland |
| 26 | Edward Duntavy | 39 | Boarder | Lineman | North Ireland |
| 27 | Walter Vaughan | 70 | Head | — | England |
| 28 | Clara E. Vaughan | 65 | Wife | — | England |
| 29 | Samuel J. Mitchell | 58 | Head | Plumber | North Ireland |
| 30 | Hannah D. Mitchell | 52 | Wife | — | Maryland |
| 31 | Samuel J. Jr. Mitchell | 29 | Son | Driver | Pennsylvania |
| 32 | Elizabeth C. Keenan | 55 | Head | Operator | Pennsylvania |
| 33 | Joseph M. Keenan | 35 | Nephew | Printer | Pennsylvania |
| 34 | Teresa M. Keenan | 32 | Niece | Stenographer | Pennsylvania |
| 35 | Edward Shannon | 55 | Head | Policeman | Irish Free State |
| 36 | Mary E. Shannon | 47 | Wife | — | Irish Free State |
| 37 | Robert F. Shannon | 25 | Son | Splicer | Pennsylvania |
| 38 | John J. Shannon | 21 | Son | Stenographer | Pennsylvania |
| 39 | William F. Mcdowell THIS PERSON | 49 | Head | Expressman | Delaware |
| 40 | Mary J. Mcdowell | 45 | Wife | — | Delaware |
| 41 | John Nelson Mcdowell | 20 | Son | Clerk | Pennsylvania |
| 42 | Norman F. Mcdowell | 17 | Son | — | Pennsylvania |
| 43 | James J. Kavanagh | 37 | Head | Knitter | Pennsylvania |
| 44 | Mary E. Kavanagh | 45 | Wife | — | Irish Free State |
| 45 | James J. Kavanagh | 18 | Son | Order Clerk | Pennsylvania |
| 46 | Wilson Ferguson | 52 | Head | Chauffeur | North Ireland |
| 47 | Hannah Ferguson | 56 | Wife | Storekeeper | North Ireland |
| 48 | John Healy | 69 | Head | Salesman | Canada English |
| 49 | Sarah E. Healy | 64 | Wife | — | Pennsylvania |
| 50 | Thomas Cotkell | 42 | Head | Carpenter | Pennsylvania |
| 51 | Minnie F. Cotkell | 39 | Wife | — | 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)