William Orr — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this William Orr across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 6-person household.

Age 41 b. ~1899 Male Head Born: Mississippi Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Orr
Given Name	William Henry
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	41
Marital Status	Married
Birthplace	Mississippi
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Additional Details
Occupation	Porter
Industry	Pullman Railroad
Class of Worker	PW
Hours Worked	48
Income (1939)	1240
Highest Grade	Hs 1
1935 Residence	Same place
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi
Occupation	Porter
Township / Ward	Chicago
Est. Birth Year	~1899

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 William	Age	Birth yr
William Orr	Son	—	16	~1924
Ludie Orr	Spouse	—	37	~1903
Robert Orr	Son	—	10	~1930
Oligon Orr	Daughter	—	13	~1927
Jacqueline Orr	Daughter	—	15	~1925
William Orr	Head	—	41	~1899

Census Appearances

1930

Cook, Illinois

Head, age 31

Cook, Illinois · implied b. ~1899 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Orr
Given Name	William H
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	31
Marital Status	Married
Birthplace	Mississippi
Age at First Marriage	24
Father's Birthplace	Mississippi
Mother's Birthplace	Mississippi
Occupation	Porter
Industry	Pullman
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	32
Veteran	No
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi

1940

Cook-County, Illinois

Head, age 41

Cook-County, Illinois · implied b. ~1899 — 6 household members

Surname	Orr
Given Name	William Henry
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	41
Marital Status	Married
Birthplace	Mississippi
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Occupation	Porter
Industry	Pullman Railroad
Class of Worker	PW
Hours Worked	48
Income (1939)	1240
Highest Grade	Hs 1
1935 Residence	Same place
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi

Model Tree

Linked across censuses

Our Model Tree links William Orr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

William Orr

Head · 1940 · age 41 · b. ~1899 · Illinois

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Cook-County, Illinois Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-00926-00761)

Line	Name	Age	Relation	Occupation	Birthplace
41	Susie Mailey	69	Mother	—	Georgia
42	John Norman	40	Head	Laborer	Georgia
43	Carrie Q. Norman	36	Wife	—	Georgia
44	Margie Lee Norman	16	Daughter	Maid	Georgia
45	John Jr. Norman	12	Son	—	Illinois
46	Bobbie Mae Norman	10	Daughter	—	Illinois
47	Oscar Table	48	Head	Butcher	Georgia
48	Agnes Table	48	Wife	—	Georgia
49	Willie Brown	6	Nephew	—	Florida
50	Roosevelt Jackson	33	Head	Laborer	Georgia
51	Arleen Jackson	32	Wife	—	Georgia
52	Catherine Daniels	30	Lodger	Seamstress	Georgia
53	Henry Johnson	65	Lodger	—	Florida
54	William Henry Orr THIS PERSON	41	Head	Porter	Mississippi
55	Ludie Orr	37	Wife	—	Mississippi
56	William Henry Jr. Orr	16	Son	—	Mississippi
57	Jacqueline Orr	15	Daughter	—	Illinois
58	Oligon Orr	13	Daughter	—	Illinois
59	Robert Orr	10	Son	—	Illinois
60	Eugene Hice	39	Head	Laborer	Missouri
61	Callie Hice	39	Wife	—	Kentucky
62	Edward Milton Hice	12	Son	—	Illinois
63	Edward Howard Alexander	46	Head	Special Clerk	Louisiana
64	Hattie Alexander	39	Wife	—	Louisiana
65	Melvin Alexander	18	Son	—	Illinois
66	Charles H. King	60	Head	Asphalt Helper	Louisiana
67	Lennie B. Q. King	50	Wife	—	Mississippi
68	Donald G. Howard	9	Nephew	—	Illinois
69	Amanda L. Ford	51	Lodger	—	Mississippi
70	John Emmons	46	Head	Custodian	Tennessee
71	Alma Emmons	46	Wife	—	Alabama
72	Carolyn Emmons	17	Daughter	—	Illinois
73	Jean Emmons	15	Son	—	Illinois
74	Dudley Emmons	11	Son	—	Illinois
75	Carrie Dudley	76	Mother	—	Alabama
76	Donald Murdock	55	Head	Porter	West Indies
77	Marie Murdock	46	Wife	—	Georgia
78	Maunds Pierce	46	Head	Laborer	Georgia
79	Janie Pierce	40	Wife	—	Georgia
80	Mattie Pierce	21	Daughter	New Worker	Georgia

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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)

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