martin, henry martin, julie martin, richard martin, timothy martina droth martins, helen *   marwedel, hans jebsen- -> jebsen-marwedel, hans marx, leo masheck, joseph maskell, william matilsky, barbara c matta clark, gordon * matta-clark, gordon matta-clark, gordon * (4) mattenklott, gert matthes matthias exner matthiesen, patrick