Mantz Miller Team

Jack Grove

Jack has been Vice President and agency manager for Mantz Miller Insurance for over 25 years and joined Seltzer Group Partners in March of 2022. His grandparents started the company in 1963, so his love for insurance is in his blood.

Jack graduated from York College of Pennsylvania with a degree in Elementary Education.

Jack works hard to gain the trust of his clients, making honest customer service his top priority. Jack is very knowledgeable about personal and commercial insurance but specializes in farms and small businesses.

Jack enjoys bike riding and fitness, and during the summer, boating. His happiest times are spent with his wife and two daughters.

Sue Miller

Sue started her insurance career at Mantz Miller Insurance Agency in 1972. After a few years, she took some time off to raise her 3 sons but continued working part-time at the agency. Sue takes great pride in being an accurate, detail-oriented insurance agent with a focus on servicing farm insurance accounts. She has also worked as a tax collector and owned her accounting and tax preparation business. Sue’s favorite part of working at Mantz Miller Insurance is working in a close-knit family atmosphere with great co-workers. And now, as a part of Seltzer Group Partners, she is proud to work with very competent and caring people.

In her free time, Sue enjoys quilting, crocheting, and other crafts, swimming, and vacations in the Caribbean. She is active in her church and loves spending time with her husband Jim and her family, including 5 grandchildren and many pets.

Ray Keene