As Mr. Muskrat said you can interate over the many records

my @persons  = $schema->resultset( 'TblPerson' )
     ->search( { LastName  => 'Smith',
                 FirstName => 'John' },
     { prefetch  => ['tbl_requests'] }
);

foreach my $p (@persons) {
  printf "
Name    : %s 
SternID : %s 
PrefName: %s 
", $p->LastName,
   $p->username,
   $p->PrefName; 
   for ($p->tbl_requests){
     printf " RID = %s  Status = %s\n",$_->RID,$_->status; 
   }
}
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