, ▁while ▁the ▁municipality ▁of ▁I lo ilo ▁was , ▁by ▁virtue ▁of ▁Act ▁No . ▁ 7 1 9 ▁of ▁April ▁ 3 , ▁ 1 9 0 3 , ▁composed ▁of ▁the ▁territ ories ▁of ▁the ▁Spanish - era ▁pue bl os ▁of ▁I lo ilo , ▁J aro , ▁La ▁Paz , ▁Mand ur ria o ▁and ▁M olo . ▁J aro ▁once ▁again ▁became ▁a ▁separate ▁municipality ▁by ▁virtue ▁of ▁Executive ▁Order ▁No . ▁ 6 4 ▁issued ▁on ▁December ▁ 2 4 , ▁ 1 9 0 7 , ▁while ▁La ▁Paz ▁was ▁re - est ab lished ▁in ▁ 1 9 2 0 ▁by ▁virtue ▁of ▁Executive ▁Order ▁No . ▁ 7 0 ▁signed ▁on ▁October ▁ 1 1 , ▁ 1 9 1 9 . ▁ ▁When ▁seats ▁for ▁the ▁upper ▁house ▁of ▁the ▁Philipp ine ▁Legisl ature ▁were ▁elected ▁from ▁territory - based ▁districts ▁between ▁ 1 9 1 6 ▁and ▁ 1 9 3 5 , ▁the ▁then - m unicip al ities ▁of ▁Are val o , ▁I lo ilo ▁( also ▁en comp ass ing ▁Mand ur ria o ▁and ▁M olo ), ▁J aro ▁and ▁La ▁Paz ▁— ▁along ▁with ▁the ▁rest ▁of ▁I lo ilo ▁province ▁— ▁formed ▁part ▁of ▁the ▁sevent h ▁sen atorial ▁district ▁which ▁elected ▁two ▁out ▁of ▁the ▁ 2 4 - member ▁sen ate . ▁When ▁the ▁City ▁of ▁I lo ilo ▁was ▁created ▁in ▁ 1 9 3 6 ▁by ▁mer ging ▁the ▁municipal