Rubuta ci gaba don wannan sakin layi - A matsayin babban bishop, sau da yawa ana ba Hanna aikin taimakawa wajen warware rikice-rikicen aiki. A shekara ta 1921, an nada shi shugaban kwamitin sasantawa na albashi na San Francisco; Hanna ya yi aiki a kan kwamitocin har zuwa 1924. Gwamna James Rolph ya nada Hanna a matsayin shugaban kwamitin sulhu na jihar don warware yajin aikin auduga na 1933 a Corcoran, California. A lokacin 1934 West Coast bakin teku yajin aiki
, Shugaba Franklin Roosevelt ya nada Archbishop Hanna a matsayin shugaban Hukumar Longshoremen ta Kasa. An ba hukumar aikin warware yajin aikin ta hanyar sasantawa tsakanin Kungiyar Ma'aikatan Jirgin Ruwa ta Duniya, Kungiyar Ma'aikatan Jirgin Ruwa ta Duniya, da masu ba su aiki.