If you want to learn more there are two books I can recommend:
The Battle for Manila by Lawrence Cortesi
The Rescue of Santo Tomas by Robert Holland
The Holland book is freely available on eBay. Its subtitle is "The Flying Column:100 Miles to Freedom" It details the 1st Cav drive to the city and the camp. Very good reading.
Please thank your uncle for me.
Thanks. My uncle died about 10 years ago. He was very proud of what the 1st did with and for your people.
Like many in the 1st Cav, he didn't want to discuss what he did in the war. The one bright spot was his admiration for the Philipinos who fought with them, served as guides/scouts and those the Cav freed.