About 1901 he married Mable Edith (or Edith Mable) Reid, 1879-1959, daughter of William M. Reid and Mary Emma Curtis.  Mable was probably born in Chalmers Township, McDonough County.

Ambrose's older brother, Philip, married Mable's sister, Mary Elisabeth.  See also Philip H. Bonn, Ambrose and Philip's first cousin, who married a third Reid sister, Nellie.

Ambrose and Mable had three sons:

Cuba, George, white, male, 36, married, farming, born Hessa-K, both parents born Hessa-K
Margrett, white, female, 29, wife, married, keeping house, born PA, both parents born PA
John S, white, male, 9, son, single, at home, attended school within the year, born IL, father born Hessa K, mother born PA
Flaurence M, white, female, 7, daughter, single, at home, attended school within the year, born IL, father born Hessa K, mother born PA
Lyse M, white, female, 5, daughter, single, at home, born IL, father born Hessa K, mother
born PA
Joseph A, white, male, 3, son, single, at home, born IL, father born Hessa K, mother born PA
Daniel E, white, male, 8/12, born October, son, single, at home, born IL, father born Hessa K, mother born PA

Reid, Wm M, white, male, 37, married, farmer, born NY, father born Scotland, mother born Scotland
Mary E, white, female, 36, wife, married, keeping house, born NY, both parents born NY
Charles D, white, male, 14, son, single, school, attended school within the year, born IL, both parents born NY
Mary E, white, female, 12, daughter, single, school, attended school within the year, born IL, both parents born NY
Nellie E, white, female, 9, daughter, single, school, attended school within the year, born IL, both parents born NY
Jessie E, white, male, 7, son, single, born IL, both parents born NY
William M, white, male, 3, son, single, born IL, both parents born NY
Edith M, white, female, 10/12, born July, daughter, single, born IL, both parents born NY

Cuba, George, head, white, male, July 1843, 56, male, married for 19 years, born Germany, both parents born Germany, year of immigration to the U.S. - Un, number of years in the U.S. - Un, naturalized, farming, months not employed - 0, could read, write and speak English, owned his farm home free of mortgage, farm schedule 24

Ann E, wife, white, female, Sept 1841, 56, married for 19 years; mother of 2 children, 1 living; born PA, both parents born PA, could read, write and speak English

Silas, son, Feb 1870, 30, single, born IL, father born Germany, mother born PA, teacher school, attended school for 7 months, could read, write and speak English

Florence M, daughter, white, female, Sept 1872, 27, single, born IL, father born Germany, mother born PA, house keeper, could read, write and speak English

Ambrose, son, white, male, Jan 1877, 23, single, born IL, father born Germany, mother born PA, farm laborer, months not employed - 6, could read, write and speak English

Cuba, Ambrose J, head, male, white, 30, married (1st) for 9 years, born IL, father born IL, mother born U.S., spoke English, farmer, gen farming, employer, could read and write, owned his farm home free of mortgage, farm schedule 17

Mabel E, wife, female, white, 29, married (1st) for 9 years; mother of 1 child, living; born IL, both parents born NY, spoke English, could read and write

Raymond R, son, male, white, 4, single, born IL, both parents born IL, could read and write

Cuba, Ambrose, head, owned his farm free of mortgage, male, white, 42, married, could read and write, born IL; father born Germany, native tongue German; mother born IL; spoke English, farmer, general fm, farm schedule 94

Mable, wife, female,white, 39, married, could read and write, born IL, both parents born IL, spoke English

Raymond, son, male, white, 14, single, attended school after Sept. 1, 1919, could read and write, born IL, both parents born IL, spoke English

Delbert, son, male, white, 4, single, born IL, both parents born IL

Cuba, Ambros, head, owner, [no entry for home value], did not own a radio, lived on a farm, male, white, 53, married, age at first marriage - 23, could read and write, born IL, both parents born Germany, spoke English, laborer, rail road, whether a veteran of the U.S. military or naval forces mobilized for any war or expedition - no

Mable, wife, female, white, 49, married, age at first marriage - 25, could read and write, born IL, father born Scotland, mother born NY, spoke English, farmer, farm, farm schedule 67

Raymond, son, male, white, 25, single, could read and write, born IL, both parents born IL, spoke English, laborer, rail road, whether a veteran of the U.S. military or naval forces mobilized for any war or expedition - no

Delbert, son, male, white, 14, single, attended school after Sept. 1, 1929, could read and write, born IL, both parents born IL, spoke English

William, son, male, white, 8, single, attended school after Sept. 1, 1929, born IL, both parents
born IL