Gallery IBM gathering in Poughkeepsie, NY – August 8, 1968. Don Ludlow pictured near the forefront. IBM gathering in Poughkeepsie, NY – August 8, 1968. Don Ludlow pictured in back reading newspaper. Don Ludlow in a pensive moment from 1969. Don Ludlow in IBM portrait photo circa late 1970s. Don Ludlow in IBM portrait photo circa mid 1980s. Donald M. Ludlow presented a paper entitled “SUPERC – A Compare Program for Determining Source Changes” at the IBM Guide 50 Meeting in Houston, TX,, circa late 1980s. SuperC software disk package by Donald M Ludlow and Randy Black. 1985, version 1.00 SPECIAL – The Complete Story on SuperC by Donald Ludlow (IBM Cary Technical Vitality Newsletter, 1990) » See full article Don Ludlow, David Waite, and Gary Railsback – TR 08.157, IBM / 370 Host Programming Support Tools for the IBM Computer and the INTEL 8086 and 8088 Microprocessors, circa early 1980s. Don Ludlow and IBM team members at retirement party in 1992.