Age 94, passed away at Medilodge of Portage on July 1, 2024. She was born in Kalamazoo on July 16, 1929, the daughter of the late Edward and Hazel (Robinson) May. Casilda was a kind and gentle woman who was a joy to know. She was a dedicated mother to her five children and an involved grandmother, great-grandmother and great-great grandmother. Her smile and laughter will be missed by those who loved her. Casilda is survived by three sons, Richard, Dan and Robert Knowlton; many grandchildren and great-grandchildren; extended family and friends. She was also preceded in passing by two sons, Bruce and Mark Knowlton; three sisters and two brothers.