I was at Trinity from 1966-71 when I departed for Leicester where after many years in Wales I now live.
I forget many names but I remember David Bunker and Gill Palmer who was a fantastic maths teacher - I would never have got a decent maths grade without her. I have met Andy Boddington a few times since as he was an archaeologist like myself for a while (last time was in 1992 in York) but he has since left the profession. I met Sean Hayes when he were both doing PhDs at Cardiff (His in geology- I think he went to work for BP). Gary Dudbridge married someone who works with my wife in Leicester Museums and is the last person I have come across.
I occasionally visit Northampton, especially the records office, for work but it has changed so much. My main regret as a total francophile/belgophile is that my experience learning French was so bad - it took me many years to get myself to night school doing French, German and eventually Dutch.