Clinton / Lancaster Efrain Maisonet, affectionately known by friends and family as "Congo", passed away on May 27, 2022, at the UMass Memorial Medical Center's University Campus after a period of declining health; he was 75 years old. Efrain was a longtime resident of Clinton prior to his relocation to Lancaster after his retirement. Efrain was born in Vega Baja, Puerto Rico, a son to the late Hipolito and Josefa (Molina) Maisonet. Efrain is survived by his two daughters, Maria Maisonet and her husband Dana Flynn of Westborough and Melissa Young and her husband Darren of Northborough as well as his siblings and extended family in Puerto Rico. There are no public services planned at this time. Please consider donations to UMass Memorial Health Cancer Center, 55 Lake Ave N, Worcester, MA 01655. The Maisonet family was assisted during this time by Hays Funeral Home, 56 Main Street, Northborough, MA 01532. To leave a condolence for Efrain's family, please visit www.HaysFuneralHome.com.