Yep, a C-141 did indeed land, stop and depart from MAN in that period
Thanks K&C, glad I wasn't just imagining it. You have helped solve a 20 year mystery for me, as I had a hunt around the 'net today and came up with this:
65-0222 (cn 300-6073) Lockheed C-141C Starlifter Photo by Scott Rathbone | AIRFIGHTERS.COM
Looks like there was a C-141 visit in 1990 as well:
https://www.flickr.com/photos/kenfie...n/photostream/