public void AddSpouse(string memberName, string SpouseName, string gender)
{
var member = SearchMember(familyHead, memberName);
if (member != null && member.Spouse == null)
{
Gender g = (FEMALE.Equals(gender)) ? Gender.Female : Gender.Male;
Member sp = new Member(SpouseName, g, null, null);
sp.AddSpouse(member);
member.AddSpouse(sp);
}
}