Mark Irwin Seifstein Obituary

We announce the death of Mark Irwin Seifstein of Charleston, South Carolina, who passed away on September 24, 2026, at the age of 70. Mark will be remembered by family members, friends, and others whose lives were connected in meaningful ways. Leave a sympathy message to the family on the memorial page of Mark Irwin Seifstein to pay them a last tribute.

Mark will be remembered for the impact he had on the lives of those around him. Friends, family, and colleagues will cherish their memories and the time shared. Those who knew Mark will remember moments of kindness, warmth, and presence. Though words cannot fully capture his life, the legacy of connections and experiences remains. Mark’s absence will be deeply felt by those who valued his companionship.

He was predeceased by: his parents, Mitchell Meyer Seifstein and Harriette Rosenberg Seifstein. He is survived by: his wife Cynthia Arndt Seifstein; his sons, Grayson Seifstein of Charleston, SC and Elliot Seifstein (Misty) of Ravenel, SC; his siblings, Adele Toltzis (Robert) of Atlanta, GA and Ben Seifstein of Pensacola, FL; and his grandsons, Cash Seifstein and Culver Seifstein.

Memorials may be made to the charity of your choice.