▁January ▁ 1 9 4 3 ▁by ▁the ▁We aver ▁Sh ip y ards ▁in ▁Orange , ▁Texas , ▁and ▁launched ▁ 1 7 ▁February ▁ 1 9 4 4 . ▁She ▁was ▁completed ▁and ▁commission ed ▁on ▁ 3 1 ▁May ▁ 1 9 4 4 ▁with ▁L t . ▁( j . g .) ▁Robert ▁A . ▁Harris ▁in ▁command . ▁ ▁After ▁sh aked own ▁out ▁of ▁Little ▁Creek , ▁Virginia , ▁and ▁mines we eping ▁operations ▁in ▁Massachusetts ▁Bay , ▁Y MS - 3 7 4 ▁cleared ▁Boston , ▁Massachusetts , ▁ 3 0 ▁September ▁and ▁ste amed ▁toward ▁the ▁Pacific ▁war ▁zone . ▁ ▁The ▁mines we eper ▁arrived ▁Pear l ▁Har bor ▁ 1 8 ▁November ▁and ▁following ▁formation ▁swe eping ▁man eu vers , ▁sa iled ▁ 2 2 ▁January ▁ 1 9 4 5 ▁esc ort ing ▁L ST ▁Fl ot illa ▁ 2 1 ▁to ▁Sa ip an . ▁ ▁Y MS - 3 7 4 ▁participated ▁in ▁the ▁Battle ▁of ▁I wo ▁J ima , ▁arriv ing ▁off ▁the ▁island ▁ 1 7 ▁February . ▁She ▁cleared ▁lan es ▁for ▁land ings ▁scheduled ▁ 2 ▁days ▁later . ▁Following ▁the ▁invasion , ▁Y MS - 3 7 4 ▁made ▁ant is ub marine ▁pat rol s , ▁esc orted ▁support ▁ships , ▁and ▁laid ▁smoke ▁screens ▁before ▁ret iring ▁to ▁the ▁Philippines ▁and ▁arriv ing ▁Ley te ▁ 8 ▁March . ▁▁ ▁The ▁mines we eper ▁ste amed ▁into ▁Sa ip an ▁