Nyorai kupfuurira kweiyi ndima - MM&amp;P yakanga ichishingaira mu1934 West Coast waterfront strike
, kubatana pamwe chete neMarine Engineers' Beneficial Association (MEBA) musi wa19 Chivabvu 1934. Pamwe chete, muna 1937 masangano maviri aya akava chikamu cheMaritime Federation of the Pacific (MFP). Zvisinei, kubatana kwacho hakuna kugara kwenguva refu. Muna Chikunguru 1938, MM&amp;P yakabuda muMFP, pamwe chete neSailors 'Union yePacific uye Marine Firemen, Oilers, Watertenders, uye Wipers yePacific Coast Union.