EC
Emma Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this Emma Campbell across the 1920, 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Campbell |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Waukegan City |
| Est. Birth Year | ~1888 |
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 Emma | Age | Birth yr |
|---|---|---|---|---|
| William Campbell | Head | — | 51 | ~1889 |
| Emma Campbell | Spouse | — | 52 | ~1888 |
| Raymond Campbell | Son | — | 12 | ~1928 |
| George Campbell | Son | — | 15 | ~1925 |
| Merwyn Campbell | Son | — | 27 | ~1913 |
| William Campbell | Son | — | 20 | ~1920 |
Census Appearances
1920
Lake, Illinois
Other, age 30
Lake, Illinois · implied b. ~1890 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Emma |
| Relationship to Head | daughter in law |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Lake, Illinois
Other, age 41
Lake, Illinois · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Emma |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Spouse, age 52
Lake-County, Illinois · implied b. ~1888 — 6 household members
| Surname | Campbell |
| Given Name | Emma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Emma Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Emma Campbell
Spouse · 1940 · age 52 · b. ~1888 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00831-00324)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary E. Little | 80 | Mother-in-law | — | Illinois |
| 42 | William D. Campbell | 51 | Head | Operator | Kansas |
| 43 | Emma Campbell THIS PERSON | 52 | Wife | — | Illinois |
| 44 | Merwyn Campbell | 27 | Son | Clerk | Illinois |
| 45 | William M. Campbell | 20 | Son | Window Trimmer | Illinois |
| 46 | George Campbell | 15 | Son | — | Illinois |
| 47 | Raymond Campbell | 12 | Son | — | Illinois |
| 48 | Laurence Barrett | 60 | Head | — | Illinois |
| 49 | Helen Barrett | 43 | Wife | — | Wisconsin |
| 50 | Edward Barrett | 9 | Son | — | Illinois |
| 51 | Robert Barrett | 6 | Son | — | Illinois |
| 52 | Herbert Nichols | 21 | Step-son | Attendant | Wisconsin |
| 53 | Hazel Nichols | 19 | Step-daughter | Messenger | Michigan |
| 54 | Ralph Linderholm | 25 | Head | Press Operator | Illinois |
| 55 | Helen Linderholm | 23 | Wife | Office Clerk | Wisconsin |
| 56 | Ralph Jr. Linderholm | 2 | Son | — | Illinois |
| 57 | Ruth Brand | 38 | Head | Supervisor Of Medical Dept | Iowa |
| 58 | Nettie Kreager | 65 | Mother | — | Iowa |
| 59 | Virgil Burney | 37 | Head | Jeweler | Illinois |
| 60 | Ethel Burney | 36 | Wife | — | Illinois |
| 61 | Paul Savage | 25 | Head | Shipping Clerk | Illinois |
| 62 | Elaine Savage | 25 | Wife | — | Illinois |
| 63 | Alma Bullard | 51 | Head | Pantry Cook | Indiana |
| 64 | Anita Jane Bullard | 21 | Daughter | Stenographer | Illinois |
| 65 | Howard Ash | 22 | Head | Optician | Ohio |
| 66 | Gladys Ash | 20 | Wife | Operator | Illinois |
| 67 | Frank J. Barney | 59 | Head | Round House Laborer | Nebraska |
| 68 | Bernice B. Barney | 57 | Wife | — | Nebraska |
| 69 | Leona Wedge | 66 | Head | — | Illinois |
| 70 | Margaret Wedge | 25 | Daughter | — | Illinois |
| 71 | Ralph Yohn | 41 | Lodger | Department Supervisor | Illinois |
| 72 | Clement Burroughs | 27 | Lodger | Medical Doctor | Arkansas |
| 73 | William L. Robison | 28 | Head | Salesman | Wisconsin |
| 74 | Helen G. Robison | 26 | Wife | — | Minnesota |
| 75 | Robert J. Carr | 22 | Head | Wire Drawer | Illinois |
| 76 | Dorothy M. Carr | 21 | Wife | Splicer Operator | Illinois |
| 77 | Frank Hewitt | 50 | Head | Prop. Garage | Illinois |
| 78 | Maude Hewitt | 48 | Wife | — | Illinois |
| 79 | George Hewitt | 27 | Son | — | Illinois |
| 80 | Harry Hewitt | 16 | Son | — | Illinois |
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)