The Michigan Intercollegiate Athletic Association is an athletic conference which competes in the NCAA's Divison III. Member teams are located in the states of Michigan and Wisconsin.
... and
means "they are in me".
"-aham" (I) in the second line is nominative. na caaham =
"...and not I....", meaning "but I am not...".
"teshv-" (in/at/by them) a ...