Mars Area School District is saying goodbye to four retiring teachers and staff members this summer.

Christine Boeh, a first-grade teacher at Mars Area Primary Center, is retiring after 19 years in the district.

Marsha McGroarty, a third-grade teacher at Mars Area Elementary School, is retiring after 38 years in the district. McGroarty began her career as a third-grade teacher at Adams Elementary School before moving to the current Mars Area Elementary School.

Chris Petrini, a fourth-grade teacher at Mars Area Elementary School, is retiring after 35 years in the district. Petrini began her career at Mars Area as a long-term substitute fifth-grade teacher at Adams Elementary School before moving to a full-time fourth-grade position in 1989.

Kim Schuelke, a kindergarten teacher at Mars Area Primary Center, is retiring after 15 years in the district. Prior to joining the district as a math teacher in 2008, she worked as a first-grade teacher in Sacramento, Calif.