Mark 11 was the first lander on Minmus, and as I'm sure you've noticed, she was very, very tall, and liable to tip over. Magnificent Minmus Mission Mk 1.3 was developed as a test bed for Mun landing technology, and became a workhorse for Minmus science missions. Might M' Rover Mk3 Mover Mk 1.1 was a science vessel and the first rover of the campaign, which traveled from the midlands to a specific section of the flats, collecting science along the way, and Skippa Gamma Mk1 picked up the scientist kerbal (Anlan I think?) and delivered her and the science back to kerbin. Minmus M'clown Motel Mk1 Mama Mk1 was a contract mission and it is the tomb for Jebidiah, among other Kerbals.