Pérsida Himmele is an associate professor at Millersville University in southeastern Pennsylvania. She has served as an elementary and middle school teacher, a district administrator, an English language learner program consultant, and a public speaker on issues related to student engagement and teaching in diverse classrooms. She has lived, taught, and studied in New York, California, and Pennsylvania, becoming actively involved in advocating for the passage of educational policies and funding formulas for the betterment of urban schools and English language learners. She earned her PhD in intercultural education from Biola University and her master's degree in elementary and bilingual education from SUNY Buffalo. William Himmele is an associate professor at Millersville University in southeastern Pennsylvania. He has served as an ESL teacher and a speech pathologist, a higher education administrator, an international consultant, and a speaker on issues related to increasing student engagement and teaching English language learners. He served as the coordinator for the graduate ESL teacher certification program at Millersville University and has been an educational program consultant for several schools in various countries seeking to improve their school programs. He has lived, taught, and studied in New York, California, and Pennsylvania.

He earned his PhD in intercultural education and his master's in teaching English to speakers of other languages (TESOL) from Biola University.