**And when** Lamech was 181 years old (Year 1055), he took Ashmua daughter of Elisha son of Enoch his uncle as a wife, and she conceived for him. At the turn of the year, she bore him a son. Methuselah called his name Noah, saying: "May the earth rest and be quiet from destruction in his days." His father Lamech called him Menachem, saying: "This one will comfort us," etc. For at that time mankind sowed the earth and found a little food, but mankind did not desist from their evil ways [(Sefer HaYashar).

In the book Mikhlal Yofi, you will see that according to the view that the first one born after Adam's death was Noah].