Looking for Mena's in El Jaralito Jalisco Mexico

My grandfather Jose Mena, I was told he was born in 1904 Union de San Antonio, Jalisco, Mexico.
He married Juana Valderrama in Los De Moreno on February 1 1923. She was born 1907 in same town.
They had 2 son names Guadalupe born 1926 and Leopoldo born 1925 on their border crossing index card from Laredo Texas it reads they were born in El Jaralito, Jalisco, Mexico. I can’t find El Jaralito, Jalisco. Can someone please let me know where it is? Where do I find birth Records for them. I have enclose copies of border crossing documents. I hope they show up, My first time sending attach files.Thanks for any help. Laurie Machen