WCCO Viewers’ Choice For Best Dry Cleaner In Minn.Derek Engler is in the third generation of the family that started Pilgrim Dry Cleaners in Brooklyn Park. "Pilgrim started in 1940 with my grandfather. It continued with his daughter, my mother, Bonnie Engler. I came on in 2009," Derek said. He says clothes are cleaned in a solvent-based method that's green, organic and environmentally friendly.