Who was Sergio Osmeña Sr. in 1948?

Question

Who was Sergio Osmeña Sr. in 1948?

Answer 1

From what I could find, Sergio Osmeña Sr. is a place not a who (see second site below).

Sergio Osmena was the fourth President of the Commonwealth of the Philippines. He was Vice President under Manuel L. Quezon, and rose to the presidency upon Quezon's death in 1944. He was a founder of Nacionalista Party.

In 1948 - After his defeat in the election, Osmeña retired to his home in Cebu. He died at the age of 83 on October 19, 1961, at the Veteran's Memorial Hospital in Quezon City. He is buried in the Manila North Cemetery in Manila.