结构体指针链表，编译报错，求指导！！

[lanskyxti1]

#include<stdio.h>
#include<ctype.h>
#include<stdlib.h>
#include<stdbool.h>
#include<string.h>
struct Family *get_person(void);//输入个人信息 
bool related(struct Family *pmember1,struct Family *pmember2);//测试他爷爷、他奶奶 
bool set_ancestry(struct Family *pmember1,struct Family *pmember2);
struct Date
{
  int day;
  int month;
  int year;
};
struct Family
{
  struct Date dob;
  char name[20];
  char father[20];
  char mother[20];
  struct Family *next;
  struct Family *previous;
  struct Family *p_to_pa;
  struct Family *p_to_ma;
};
int main(void)
{
	struct Family *first=NULL;
	struct Family *current=NULL;
	struct Family *last=NULL;
	//struct Family *pmember1=NULL;
	//struct Family *pmember2=NULL;
	char more='\0';
	for(;;)
	{
	  printf("\nDo you want to details of a%s person (Y or N)?",first !=NULL?"nother":"");
	  scanf(" %c",&more);
	  if(tolower(more)=='n')
	    break;
	  current=get_person();
	  if(first==NULL)
	  {
	  	first=current;
	  	last=current;
	  }
	  else
	  {
	  	last->next=current;
	  	current->previous=last;
	  	last=current;
	  }
	  current=first;
   while(current->next !=NULL)
   {
 	  int parents=0;
				last=current->next;
 	  while(last !=NULL)
 	  {
 		  if(related(current,last))
					  if(++parents==2)
							  break;
			  last=last->next;
 	  }
 	  current=current->next;
   }
 }
 /*current=first;
   while(current->next !=NULL)
   {
 	  int parents=0;
				last=current->next;
 	  while(last !=NULL)
 	  {
 		  if(related(current,last))
					  if(++parents==2)
							  break;
			  last=last->next;
 	  }
 	  current=current->next;
   }*/
	current=first;
 while(current !=NULL)//按顺序输出名字，日，月、年、父亲、母亲，及认爷爷，奶奶 
 {
   printf("\n%s was born %d/%d/%d,and has %s and %s as parents.",current->name,current->dob.day,current->dob.month,current->dob.year,current->father,current->mother);
   if(current->p_to_pa !=NULL)
					printf("\n\t%s's birth date is %d/%d/%d",current->father,current->p_to_pa->dob.day,current->p_to_pa->dob.month,current->p_to_pa->dob.year);
			if(current->p_to_ma !=NULL)
					printf("\n\t%s's birth date is %d/%d/%d",current->mother,current->p_to_ma->dob.day,current->p_to_ma->dob.month,current->p_to_ma->dob.year);
   current=current->next;
 }
 current=first;
 while(current !=NULL)//释放内存 
 {
 	last=current;
 	current=current->next;
 	free(last);
 }
 system("pause");
 return 0;
}
struct Family *get_person(void)
{
	struct Family *temp;
	temp=(struct Family*)malloc(sizeof(struct Family));
	printf("\nEnter the name of the person:");
	scanf("%s",temp->name);
	printf("\nEnter %s's date of birth (day month year):",temp->name);
	scanf("%d %d %d",&temp->dob.day,&temp->dob.month,&temp->dob.year);
	printf("\nWho is %s's father?",temp->name);
	scanf("%s",temp->father);
	printf("\nWho is %s's mother?",temp->name);
	scanf("%s",temp->mother);
	temp->next=temp->previous=NULL;
	temp->p_to_pa=temp->p_to_ma=NULL;
	return temp;
}
bool set_ancestry(struct Family *pmenber1,struct Family *pmenber2)//测试A是否是B的爷爷/奶奶 
{
	struct Family *pmember1;
	struct Family *pmember2;
	if(strcmp(pmenber1->father,pmenber2->name)==0)
	{
		pmember1->p_to_pa=pmember2;
		return true;
	}
	if(strcmp(pmember1->mother,pmenber2->name)==0)
	{
		pmember1->p_to_ma=pmember2;
		return true;
	}
	else
			return false;
}
bool related(struct Family *pmember1,struct Family *pmember2)
{
	return set_ancestry(pmember1,pmember2)||set_ancestry(pmember2,pmember1);
}

[lanskyxti1]

补充问题：这个问题不是编译报错，而是运行了中出错，本人是新学编程的，还不是很会使用Debug去检查出错位置，求各路大神给指点下那里出错了的。谢谢！