1.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

James K. THOMPSON Spouse: Katharina Marriage: 07 Mar 1872, Jefferson, Missouri Source: Marriage Records, 1825-1951. Jefferson County (Missouri). Recorder of Deeds

2.  1880 Census Every-Name-Index/Images (online at Ancestry.com, Image #43 of 43):  Big River Twp., Jefferson Co., MO, Roll T9-0696, p. 130C, PN 43, SD 1, ED 19, enumerated 29 Jun 1880, official enumeration date 1 Jun 1880 (extracted by Diana Gale Matthiesen):¤•

1880:  for an explanation of the column headings, please see What the Numbers in the Federal Census Mean (missing columns contained no data).

1

2

3

4

5

6

8

9

10

13

21

24

25

26

389

389

Thompson James

W

M

23

/

Farmer

Mo

SC

Mo

________ Kate

W

F

25

Wife

/

Keeping house

Mo

Mo

Mo

________ Wm W

W

M

5

Son

/

at Home

Mo

Mo

Mo

Eoff Mary C

W

F

10

Niece

at Home

/

Mo

Mo

Mo

Bryan Wm

W

M

32

Boarder

/

School teacher

Mo

Mo

Mo

_____ Saml

W

M

26

Boarder

/

Farmer

Mo

Mo

Mo

Kate has shaved two years off her age; either that or her age in the 1870 census is wrong.  Listed three households from Henry WIDEMAN (æ 40, b. MO, wife Minerva, æ 34, b. MO).