Note: During her busy life, Petra never lost hope in becoming a citizen of the United States, and on March 10, 1989, her dream came true.

In July of 2015, Petra celebrated the Guillen Family Reunion  in Houston, TX.

Credit: This history of Petra’s life is based on information gathered from several sources, including 1) oral history provided by Petra in 1989 to the Houston Public Library – Houston Metropolitan Research Center (HMRC), 2) an interview Petra completed with Natalie Garza in 2010 for the Oral History of Houston Project, and 3) oral history provided by Petra, family members, and gathered from the following book: Sister Valdez, M.P. M.C.D.P. (1978), The History of the Missionary Catechists of Divine Providence.