I am looking for my husband's grandfather Rodolfo Palacios. He possibly was born in Jalisco Mexico in the early 1920s. He was part of the Bracero program for farm workers from Mexico in the 1940s and came to Stockton California in or about 1943 where he worked in an ice plant there. He left, we think, for Mexico in 1947 and no one has heard from him since. This is my mother-in-law's father who she has never met. Can anyone help us?