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John Murdock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mobile-County, Alabama
Our Model Tree links this John Murdock across the 1930 and 1940 US Censuses in Mobile-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mobile-County, Alabama |
| Surname | Murdock |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 21 |
| 1935 Residence (County) | Mobile |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 21 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joseph Murdock | Head | — | 54 | ~1886 |
| Earl Taylor | Other | — | 18 | ~1922 |
| John Murdock | Son | — | 16 | ~1924 |
| Mellie Murdock | Spouse | — | 51 | ~1889 |
| William Murdock | Son | — | 13 | ~1927 |
| Estella Taylor | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Mobile, Alabama
Son, age 6
Mobile, Alabama · implied b. ~1924 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murdock |
| Given Name | John D., Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Mobile-County, Alabama
Son, age 16
Mobile-County, Alabama · implied b. ~1924 — 6 household members
| Surname | Murdock |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 21 |
| 1935 Residence (County) | Mobile |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 John Murdock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Murdock
Son · 1940 · age 16 · b. ~1924 · Alabama
★ You are viewing this record
Sibling
Estella Taylor
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Murdock
Sibling · 1940 · age 13
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 — Mobile-County, Alabama
Open full size
1940 US Federal Census — Mobile-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00063-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Milton P. Brigman | 23 | Head | Truck Driver | Alabama |
| 42 | Lillian Brigman | 22 | Wife | — | Alabama |
| 43 | Milton P. Jr. Brigman | 1 | Son | — | Alabama |
| 44 | Eric L. Hanson | 40 | Head | Pressman | Wisconsin |
| 45 | Octavia Hanson | 34 | Wife | — | Alabama |
| 46 | Aron Cooley | 37 | Head | Truck Driver | Mississippi |
| 47 | Ruth Cooley | 38 | Wife | — | Mississippi |
| 48 | Jackie Cooley | 6 | Son | — | Mississippi |
| 49 | Robert Cooley | 29 | Head | 16 | Mississippi |
| 50 | Lottie Cooley | 25 | Wife | Saleswoman | Mississippi |
| 51 | Bennie Sheffield | 60 | Head | — | Alabama |
| 52 | Joseph Sheffield | 23 | Son | Salesman | Alabama |
| 53 | Joseph Murdock | 54 | Head | Engineer | Alabama |
| 54 | Mellie Murdock | 51 | Wife | — | Nebraska |
| 55 | Earl Taylor | 18 | Son-in-law | 50 | Texas |
| 56 | John M. Murdock THIS PERSON | 16 | Son | — | Alabama |
| 57 | Estella Taylor | 15 | Daughter | — | Texas |
| 58 | William Murdock | 13 | Son | — | Alabama |
| 59 | Lowell Gates | 26 | Head | Carpenter | Arkansas |
| 60 | Edna Gates | 26 | Wife | — | Alabama |
| 61 | Myrtle Estes | 55 | Mother | — | Texas |
| 62 | Clarke Estes | 19 | Brother | Salesman | Arkansas |
| 63 | Sam L. Estes | 45 | Head | Carpenter'S Helper | Arkansas |
| 64 | Juanita Estes | 28 | Wife | — | Arkansas |
| 65 | George H. Estes | 11 | Son | — | Arkansas |
| 66 | James Allan Estes | 6 | Son | — | Alabama |
| 67 | Sarah Crater | 55 | Mother-in-law | — | Alabama |
| 68 | Mathew Klein | 51 | Head | — | Romania |
| 69 | Josie Lee Klein | 50 | Wife | Seamstress | Alabama |
| 70 | Ruth Klein | 18 | Daughter | Machine Operator | Ohio |
| 71 | Matt M. Klein | 17 | Son | — | Alabama |
| 72 | Melvin Klein | 15 | Son | — | Alabama |
| 73 | Edna Klein | 12 | Daughter | — | Alabama |
| 74 | Baker C. Farnell | 59 | Head | Manager | Alabama |
| 75 | Elizabeth Farnell | 48 | Wife | — | Alabama |
| 76 | Baker C. Jr. Farnell | 20 | Son | Buyer For Retail Grocery | Alabama |
| 77 | Maxine Farnell | 17 | Daughter | — | Alabama |
| 78 | Idora Mcgee Farnell | 15 | Daughter | — | Alabama |
| 79 | Albert Delehanty | 37 | Head | Managing Partner | Alabama |
| 80 | Lucille Delehanty | 45 | Wife | — | Alabama |
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)