Can't find the first two, but here's the third. These lyrics/chords are from Cowpie. Click here

Lin

SWEETHEARTS IN HEAVEN
  As sung by Buck Owens
  
  Chorus:
  Eb                             Bb             Ab        Eb
  Will there be sweethearts in heaven after we cross the line
  Eb                     Ab       Eb     Bb           Eb
  If the angels have sweethearts then I want you for mine
  
      Eb
  If I should go first and leave you behind
                                        Bb
  To face life alone just bare this in mind
        Eb
  That I'll be a-waiting if heaven's my fate 
      Ab              Bb                          Eb
  To take you by the hand just inside the pearly gates
  
  
  lead
  
      Eb             
  Now I'd be a tramp and sleep in the street  
                                      Bb
  Or I'd be a beggar with rags on my feet
  Eb
  If I knew for sure when the time comes to part 
  Ab           Bb                  Eb
  Someday in heaven you'd be my sweetheart
  
  go to chorus to end