Ronald T. Blair, 64, who founded a South Jersey substitute teacher placement service, died of cancer Saturday at home in Cherry Hill.

Mr. Blair graduated from Collingswood High School and Drexel University, and sold real estate in South Jersey and Pittsburgh for more than 16 years.

For 12 years he operated Record Masters, a hospital-records management company in Pennsauken. In the late 1990s, he was inspired by his former wife, Pam Blair, a teacher, to improve the system for hiring substitute teachers.

Mr. Blair established Source4Teachers in Cherry Hill, which recruited and trained temporary certified instructors. He also established a substitute teacher database and placement service for South Jersey school districts. He retired two years ago.

Mr. Blair mentored students in the Junior Achievement program in Camden County, teaching them sales and business skills. He enjoyed summers at the Shore and travel. He fulfilled a lifelong dream to visit Ireland, his daughter Kristin said, and traveled to Cuba for a car show. He had a passion for vintage and classic Chevrolets, she said.

In addition to his daughter and former wife, Mr. Blair is survived by a daughter, Cheryl Cunningham; stepchildren Amanda, Christopher and Andrew Hartung; and former wife Carolyn Smith.

Friends may call from 7 to 9 p.m. today and from 8:30 a.m. tomorrow followed by a funeral service at 11 a.m. at Terranova Funeral Home, 402 White Horse Pike, Haddon Heights. Burial will be in Locustwood Memorial Park in Cherry Hill.

Donations may be made to Nanette Harrell Low Memorial Scholarship Fund at Collingswood High School, in care of 2547 Woodleigh Rd., Havertown, Pa. 19083.