Am i entitled to my deceased farther's 401k earnings?

my dad died 10 years ago and my uncle keep getting letters stating his 401k has been rolled over.my uncle juts contacted me and stated he think their is some money in a 401k that my farther had and i should check it out.after 10 years is it possible?since i am the daughter can i get the money now.also my dad had money in a credit union.after 10 years can i get that money also?all this is just comming to my attention by my uncle.please advise and thank all in advance