moffatj wrote:can anyone indicate what "head of household" means
In the world of Church recordkeeping, "head of household" is the term for the member with whose membership record a group of other membership records are connected. Most commonly, it is the father of a family. It may also be a mother, if there is no father or if he is not a member, or it could be an oldest child with whom other brothers or sisters are connected. A single record is also, by default, a head of household, even though no other records are attached.
As has already been mentioned, a member receives information based on calling, and not on whether their membership record is the anchor for a collection of other records. All other things being equal, a husband and wife will see exactly the same information about each other and their children, if any.