Baker's father, Stanley Z. Baker, purchased J.T. Eaton & Co in 1949. The company was founded 17 years prior as a mail-order house for pest control products. Bart and his brother Ben grew up in the business, helping their parents fill orders at the warehouse and eventually learning the sales and management operations.
In the 1980s, Baker wrote the popular column “Bart Baker Speaks” for Pest Control (now Pest Management Professional) magazine. Baker always enjoyed working with pest management professionals, whether it was demonstrating J.T. Eaton’s latest Integrated Pest Management (IPM) innovation at a trade show or helping to troubleshoot a tough rodent or insect account on phone or in person. He retired from the business in 2012.