The Brief An 8-month-old baby stopped breathing during a visit to a post office in Clifton on July 11. A former nurse now working as a postal clerk is being credited with helping save the life of an 8-month-old baby after the child stopped breathing at a Post Office in Greenlee County on July 11. Vega said she quickly realized something was wrong and that Nova had stopped breathing. Mary Schwarz, a postal clerk and former nurse with 13 years of experience, immediately stepped in to help. Image 1 of 4 ▼ An 8-month-old named Nova is recovering in a Tucson hospital after a postal worker saved her life with CPR.