Can anyone help with these autographs? 2 Down, 2 To Go!

[quinnsryche]

Can anyone help out figuring whose these sigs are? They may not even be baseball related as I also got a Ted Koppel signed ball in the group.
Any help would be greatly appreciated.
Thanks in advance,
Tony

[Klrdds]

Top one Trace Adkins
Second one John Kruk

[quinnsryche]

Thanks, never would have gotten those!

[mcgwirecom]

#2 John Kruk

[quinnsryche]

Can anyone help with the last 2?