"As Long As We Both Shall Live" is an US documentary that researches the marriage situation in the US. All of these couples are married for at least 40 years. I recall my grandparents were married for 55 years before my grandpa passed away in 2001.
Pat and Bob, New York, NY (2004) - married 1965
Irwin and Evelyn, Chevy Chase, MD (1997) - married 1950
Chia and Hat, Arlington, VA (2000) - married 1942
Patrick and Setsuko, Honolulu, HI (1998) - married 1950
Bernard and Hortense, Bronx, NY (1999) - married 1946
John and Jarline, Athens, TX (2003) - married 1950
Lyle and Arlita, Warm Springs Reservation, OR (2002) - married 1956
Harold and Dorothy, New York, NY (2000) - married 1948
Jack and Dorothy, York, ME (2002) - married 1946
Duane and Nancy, Westwood Hills, KS (2005) - married 1953
Harold and Gail, Carlsbad, CA (2004) - married 1965
Harold and Helen, Christiansburg, VA (2005) - married 1962