Lawrence and Gormé married on December 29, 1957, at the El Rancho Hotel in Las Vegas, Nevada.

They had two sons together.
David Nessim Lawrence (b. 1960) is an ASCAP Award-winning composer who composed the score for High School Musical.
Michael Robert Lawrence (1962–1986) died suddenly from ventricular fibrillation resulting from an undiagnosed heart condition at the age of 23.
Michael was an assistant editor for a television show at the time of his death and was apparently healthy despite a previous diagnosis of slight arrhythmia.

Gormé and Lawrence were in Atlanta, Georgia, at the time of Michael's death, having performed at the Fox Theater the night before.
Upon learning of the death, family friend Frank Sinatra sent his private plane to fly the couple to New York to meet David, who was attending school at the time.
Following their son's death, Gormé and Lawrence took a year off before touring again.

Gormé died on August 10, 2013.

In June 2019, Lawrence was diagnosed with Alzheimer's disease.
Lawrence and Gormé married on December 29, 1957, at the El Rancho Hotel in Las Vegas, Nevada. 
They had two sons together. David Nessim Lawrence (b. 1960) is an ASCAP Award-winning composer who composed the score for High School Musical. Michael Robert Lawrence (1962–1986) died suddenly from ventricular fibrillation resulting from an undiagnosed heart condition at the age of 23. Michael was an assistant editor for a television show at the time of his death and was apparently healthy despite a previous diagnosis of slight arrhythmia.
Gormé and Lawrence were in Atlanta, Georgia, at the time of Michael's death, having performed at the Fox Theater the night before. Upon learning of the death, family friend Frank Sinatra sent his private plane to fly the couple to New York to meet David, who was attending school at the time. Following their son's death, Gormé and Lawrence took a year off before touring again.
Gormé died on August 10, 2013.
In June 2019, Lawrence was diagnosed with Alzheimer's disease.
Steve Lawrence