1. John Spencer (b. 1954) wrote The UFO Encyclopedia.
2. John Spencer (b. 1955) wrote The American Civil War in Indian Territory.
3. Spencer, John (John Leslie), 1954- wrote The Professional Secretary.
4. John Spencer,John Scott Spencer; b. Jan. 16, 1956 president of Red Planet Ventures Inc., wrote Space Tourism.
5. Spencer, John, 1935-2006. wrote Spencer on Snooker.
6. Spencer, John, 1630-1693 wrote A discourse concerning prodigies wherein the vanity of presages by them is…
7. Spencer, John, d. 1680 wrote Kaina kai .......
8. Spencer, John R., LL.B. wrote Hearsay Evidence in Criminal Proceedings.
9. John Spencer, Univ. of North Carolina, wrote Global Positioning System: A Field Guide for the Social Sciences.
10. John (Walter) Spencer, b. Sept. 24, 1922 wrote Linguistics and Style.
11. John Spencer, real name Graham Flinton not used in authorship, born 9 July 1950, UK (1944 - 2002)(two birthdates from different sources) wrote Case for Charley.
12. John Ashley Spencer, born 28 July 1958 wrote Star Family Walks.
13. Spencer, John 1942 June 2- wrote Human Rights Law.
14. Spencer, John 1925- wrote The Art History Study Guide.
15. John R. (John Richard) Spencer wrote Andrea del Castagno and His Patrons.
16. J. L. (John L.) Spencer, 1954- author of Top- Teams
{another?} John R. Spencer, author of Icequake
