BOSTON (CBS) – Saturday is a big day for 69-year-old Thomas Demakes of Lynn.

After five years of studying and holding down a job he’s had since he was five, he will receive his M.B.A. from Suffolk University.

He won’t be alone. His three sons, all in their 30′s will be walking down that same aisle getting their M.B.A’s as well.

They all work for their dad at the Old Neighborhood Foods in Lynn, a business that has been around since 1914.

They took the classes to better themselves and their business. It took a lot of work to work and attend classes but they did it.