Several towns were born in the province, and a number of them, i.e. Kidapawan, Buayan (now General Santos), Marbel, Tacurong, and some others flourished and became economically prosperous that they become cities several years later.

During World War 2, as a USAFFE officer, Pendatun organized and commanded the 102nd Regiment under the 101st Division of the Philippine Army/Constabulary from 1942 to 1943 in the following operations.

For his accomplishments, Pendatun was promoted to Brigadier General and was awarded the Distinguished Conduct Star, the second highest military decoration given to AFP Personnel.

He had also served as official member to various international conferences, including the United Nations in Paris and New York and represented the Philippine Government at the inauguration of Indonesian Independence in Jakarta in 1949.

Pendatun died on January 27, 1985, at the Philippine Heart Center in Quezon City after figuring in a road accident.