Both these pictures were probably taken by Michelle Boffa, the first some time in 1976 or 1977, the second in November 2000 at Boffa's 60th birthday meeting.
In both pictures Boffa is on the left; to his right are - successively - Thomas Forster,
and Andre Petry. The missing member of the group - on both occasions - is Roland Hinnion.
seen below on the left. On the right is your humble correspondent with Andre Petry, in characteristic pose:
(Internal evidence will reveal to the observant reader that this file was originally
prepared by my student Sarah Flannery , who taught me what little html i know.)