Jane Davidson died in 1891of internal hemorhage, but the death registration does not give the mother's name and the funeral home is no longer in business. For some reason, there is no death registration for Peter, Jr. or Thomas. I checked the Mormon Church records for Wigtown and the next closest shires for a marriage record of Jane and Peter or birth records for Peter, Jr., Thomas, Jane, or Agnes but found nothing. I'm sorry that I couldn't help more.