Frederick J. Seifert of Riverhead died March 21 at his home, surrounded by his family. He was 77 years old.
Mr. Seifert, of Seifert Construction, was a well-known local home builder.
The family will receive friends Sunday and Monday, March 24 and 25, from 2 to 4 and 7 to 9 p.m. at the DeFriest-Grattan Funeral Home in Mattituck.
The Liturgy of Christian Burial will be celebrated Tuesday , March 26, at 10:30 a.m. at Our Lady of Good Counsel R.C. Church in Mattituck. Interment, with U.S. Naval honors, will follow at Calverton National Cemetery.
Donations may be made to the Wounded Warrior Project.