I am looking for Martin family members that have or may have had Myotonic Muscular Dystrophy Type 1 in their ancestry. My father with a Martin surname (first name unknown) was born in CA in 1924 and living in the LA area in 1959. He may have passed this to five of my family members who have this disease. It can be difficult to diagnose. Adult onset presents with muscle weakness, cramping, Christmas tree type cataracts, respiratory, cardiac, hormonal difficulties, and often sudden cardiac related death. Childhood onset may present with developmental delays ,and Autistic like behaviors. Congenital onset may present with severe delays, low muscle tone, respiratory, and swallowing difficulties. Any help connecting to families affected is appreciated. I would likewise provide help and information to interested families.