1. Watson Davis

2. Watson Davis, age about 2

3. Watson Davis (at prep school?), age about 18 (fifth from left)

4. Watson Davis (age about 20?), no date, postcard

5. Watson Davis, June 30, 1927

6. Watson Davis, sitting on bench, no date, (about 1940?)

7. Watson Davis, with model T Ford, no date (about 1940?)

8. Charlotte Davis, baby picture, Christmas, 1925; daughter of Watson and Helen Davis, Christmas postcard

9. Watson Davis, formal portrait, 1937

10. Watson Davis, with briefcase, no date, Philadelphia (?); about 1945?

11. Watson Davis, with camera, no date (about 1945?)

12. Watson Davis, aboard ship (?), no date; about 1945?

13. Outside shot of Watson Davis home in Washington, DC, 1422 Rhode Island Ave. NW, no date

14. Left to right: Maude Watson Davis, Charlotte Davis (age about 3), Helen Davis, Watson Davis; about 1928?

15. Wedding photo of Charlotte Davis and Calvin Mooers, showing: Watson Davis, Helen Davis, and Calvin Mooers parents (?), 1945

16. Calvin Mooers, Aug., 1959

17. Formal shot of the Zatocoding system

18. Zatocoding system in operation with hand sorting

19. Calvin Mooers, Nov. 15, 1962, at Robert Fairthorne’s house

20. Left to right: Charlotte Davis Mooers, Leah Fairthorne(?), Robert Fairthorne, Calvin Mooers; about 1955, at Fairthorne’s home (?)

21. Calvin Mooers, about 1970

22. Calvin Mooers, with Robert Fairthorne (about 1970?)

23. Calvin Mooers, receiving ASIS Award of Merit, 1979, shown with Charlotte Davis Mooers and daughters Edith and Helen

24. Rockford Research (Calvin Mooers company), inside office shot, 1968

25. Calvin Mooers, working on computer, 1977

26. Calvin Mooers, Dec., 1965

27. John Mauchly, Sept., 1954

28. John Mauchly and Calvin Mooers, Sept., 1954

29. John Mauchly and Charlotte Davis Mooers, Sept, 1954

31. John Mauchly, Sept., 1954