JM
James Mccormick — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lake, Indiana
Our Model Tree links this James Mccormick across the 1930 and 1940 US Censuses in Lake, Indiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 2
b. ~1928
Male
Son
Born: Indiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lake, Indiana |
| Surname | McCormick |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Gary City |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Patricia Mccormick | Daughter | — | 4 | ~1926 |
| Elizabeth Mccormick | Daughter | — | 6 | ~1924 |
| Raymond Mccormick | Head | — | 40 | ~1890 |
| Charles Mccormick | Son | — | 12 | ~1918 |
| Raymond Mccormick | Son | — | 10 | ~1920 |
| James Mccormick | Son | — | 2 | ~1928 |
| Arthur Mccormick | Son | — | 17 | ~1913 |
| Allen Mccormick | Son | — | 8 | ~1922 |
| Florence Mccormick | Spouse | — | 39 | ~1891 |
Census Appearances
1930
Lake, Indiana
Son, age 2
Lake, Indiana · implied b. ~1928 — 9 household members
| Surname | McCormick |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Lake-County, Indiana
Son, age 12
Lake-County, Indiana · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Gary |
| 1935 Residence (County) | Lake |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 James Mccormick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mccormick
Son · 1930 · age 2 · b. ~1928 · Indiana
★ You are viewing this record
Sibling
Arthur Mccormick
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Mccormick
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mccormick
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mccormick
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mccormick
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Mccormick
Sibling · 1930 · age 8
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 — Lake, Indiana
Open full size
1930 US Federal Census — Lake, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel599:0146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert M. Davis | 53 | Head | Attorney | Indiana |
| 52 | Mildred L. Davis | 40 | Wife | — | Indiana |
| 53 | Robert L. Davis | 19 | Son | — | Indiana |
| 54 | Sarah A. Davis | 17 | Daughter | — | Indiana |
| 55 | John W. Davis | 11 | Son | — | Indiana |
| 56 | Richard Davis | 7 | Son | — | Indiana |
| 57 | Edwin J. Lorig | 39 | Head | Engineer | Minnesota |
| 58 | Teresa S. Lorig | 38 | Wife | — | Pennsylvania |
| 59 | Edwin J. Jr. Lorig | 11 | Son | — | Alabama |
| 60 | Grace P. Lorig | 8 | Daughter | — | Pennsylvania |
| 61 | Emil B. Dill | 40 | Head | Chief Clerk | Wisconsin |
| 62 | Ruth M. Dill | 37 | Wife | — | Indiana |
| 63 | Robert W. Dill | 10 | Son | — | Indiana |
| 64 | Theodore A. Brown | 26 | Head | Clerk | Indiana |
| 65 | Jean M. Brown | 21 | Wife | — | W. Virginia |
| 66 | Joan J. Brown | 4 | Daughter | — | Indiana |
| 67 | Edgar A. Ridgley | 50 | Head | Retail Merchant | Illinois |
| 68 | Iris B. Ridgley | 46 | Wife | — | Indiana |
| 69 | Jean Ridgley | 7 | Daughter | — | Indiana |
| 70 | Martha A. Ridgley | 73 | Mother | — | Illinois |
| 71 | Addie Hope | 54 | Head | — | Canada Eng |
| 72 | Clarence A. Hope | 25 | Son | Secretary | Canada Eng |
| 73 | Stanley H. Hope | 23 | Son | Checker | Ohio |
| 74 | Fred E. Osborne | 28 | Head | Machinist | Indiana |
| 75 | Naomi M. Osborne | 28 | Wife | — | Illinois |
| 76 | Betty M. Adams | 9 | Daughter | — | Indiana |
| 77 | John W. Loorem | 42 | Head | First Helper | Canada Eng |
| 78 | Mildred H. Loorem | 38 | Wife | — | Canada Eng |
| 79 | Joseph J. Loorem | 18 | Son | Junior Helper | Canada Eng |
| 80 | Vincent J. Loorem | 17 | Son | — | Canada Eng |
| 81 | William L. Loorem | 15 | Son | — | Canada Eng |
| 82 | Ben P. Greenwald | 46 | Head | Furniture Dealer | Hungary |
| 83 | Anna A. Greenwald | 35 | Wife | — | Illinois |
| 84 | Irwin Greenwald | 12 | Son | — | Illinois |
| 85 | Esther R. Greenwald | 8 | Daughter | — | Illinois |
| 86 | Walter L. Laufer | 54 | Head | Superintendent | Nebraska |
| 87 | Lillian H. Laufer | 45 | Wife | — | Pennsylvania |
| 88 | Walter L. Jr. Laufer | 22 | Son | — | W. Virginia |
| 89 | Raymond Mccormick | 40 | Head | Care Taker | Illinois |
| 90 | Florence L. Mccormick | 39 | Wife | — | Illinois |
| 91 | Arthur L. Mccormick | 17 | Son | — | Indiana |
| 92 | Charles L. Mccormick | 12 | Son | — | Indiana |
| 93 | Raymond P. Mccormick | 10 | Son | — | Indiana |
| 94 | Allen M. Mccormick | 8 | Son | — | Indiana |
| 95 | Elizabeth L. Mccormick | 6 | Daughter | — | Indiana |
| 96 | Patricia I. Mccormick | 4 | Daughter | — | Indiana |
| 97 | James Mccormick THIS PERSON | 2 | Son | — | Indiana |
| 98 | Thomas P. Cox | 40 | Head | Foreman | N. Carolina |
| 99 | Charlotte E. Cox | 37 | Wife | — | Indiana |
| 100 | Stanley L. Cox | 15 | Son | — | California |
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)