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Gaylord Perry was a rookie in 1962 and went 3-1 for the Giants. Much later, he played in 82-83 for the Mariners on a club that included Dave Henderson. Hendu played on a 1986 Ms club loaded with young players like Harold Reynolds, Dave Valle, Alvin Davis, Jim Beattie... Dave Valle played for the Ms thru 1993 (Lou Pinella's first year), and was teammates with Junior. Junior played in 2010 with Saunders, Gutierrez, Smoak, Carp, Felix and Kelley, all of whom are on the roster today.
So, at most, 5 degrees of separation between the '62 Giants and todays M's, three if you just count Valle announcing for Root.
Pitchers and Catchers gotta start soon, huh.