Baldemar grew up in a migrant farm-worker family based in the Rio Grande Valley of Texas. He graduated from Bluffton College with a BA in Sociology. Baldemar founded the Farm Labor Organizing Committee (FLOC). Under his leadership FLOC has set international precedents in labor history, including being the first union to negotiate multi-party collective bargaining agreements, and the first to represent H2A international guest workers under a labor agreement. Baldemar is an internationally recognized leader in the farm-worker and immigrants' rights movements.