Rosemarie V. Sedlmayer, a lifelong resident of Ossining, died on April 25, 2023. She was 87 years old. Rosemarie was born in Ossining on January 17, 1936, to Vincent J. and Filomena (DeFeo) Masullo. She graduated from Ossining High School in 1953. Rosemarie worked at Maryknoll Fathers and Brothers, Maryknoll, NY. before retiring.  She is survived by her loving children Kathleen (Hank) Grossman, Ralph (April), Carole and James, 10 adored grandchildren, Danay (Emma), Amanda (Keith), Alison, (Paul), Ralph, Jessie, Stephanie, Danielle, Brandi, Zachary and Jake, and her 10 cherished great grandchildren, Jayda-Starr, Tyler, Hailey, Charlotte, William, Olivia, Gianna, Darren, Elijah and Amelia. Rosemarie was predeceased by her loving husband Ralph in 2008 after celebrating over 52 years of marriage.  Reposing, Friday, April 28, 2023, from 4:00-8:00 PM at the Leach & Thomas Funeral Home. A mass of Christian burial will be celebrated 10:00 AM on Saturday, April 29, 2023, at St. Ann's Church in Ossining. Interment will follow at St. Augustine's Cemetery, Ossining, NY.

In lieu of flowers donations to the Alzheimer's Association or the VA Nursing Home in Montrose are greatly appreciated.

Leach & Thomas Funeral Home

45 South Highland Avenue

Ossining, New York 10562

914-941-0840