Welcome to Dragoon Base, David. Looks like you and I spent a few months together on the Rock. I was in C Trp Jan 74 to Feb 75.
Jeff Havens is a member here, but you are more likely to find him on Facebook. I met him at the 2d Cavalry Association reunion a few years back and I believe he will be attending again in April. I'll give him a holler on Facebook and let him know you are here. In the meantime, here is his Dragoon Base profile....http://dragoonbase.com/profile/JeffreyCHavens