Based on the same reasoning, Christian's parents were likely William and Christian or William and Janet. There was a "Cirstan" Swanson baptized at Olrig on 7 March 1733, daughter of William, no mother named. They lived in "Northside Olrig." The witnesses were James Sinclair of the Kirkfield and George Manson of Olrig. If this was the Julian calendar year, which was being used at the time, it would be 1734 on the current Gregorial calendar and she would have been 15 when she married. This was unusually young, even for the time and place, but no other person with this name with a father named William is in parish records for this area. Others have assumed she was the daughter of John Swanson, baptized in Olrig in 1726. While she had a son John, there were five sons before him with other names. A birth year of 1726, however, is appealing given that her last child of record was baptized in 1772. This would make her about 45, which was a relatively common age for women to have their last child, barring mitigating circumstances. A birth in 1733 would have made her about 39 in 1772. Without more information, nothing more can be gleaned. It's possible Francis or Christian (or both) died in the mid 1770s. There are no death or burial records for this parish from this time. Although there are marriage records availabe for Olrig in the time period when this William was likely married, there weren't any married to a woman named Christian or Janet. There was a William married to Janet Henderson in Thurso on 3 July 1729. Their residences aren't recorded, but Thurso was an adjacent parish to Olrig.
     The marriage record of Francis and Christian says they were both residents of Murkle and married at Olrig, the parish that included Murkle. When their first was baptized in 1750, they were in "Stangergill." Stanergill is an obsolete name for a townland now occupied by Castletown and is adjacent to Murkle on the east. The rest of the children's baptisms say they were in Murkle and East Murkle. Nineteenth century Ordnance Survey maps show that East Murkle was a farm north of what is now the A836 road. Murkle essentially included this farm and encompassed the area north and south of A836 for about two miles. This suggests they lived at East Murkle farm up to the last of their children's baptisms at least. Francis's occupation isn't recorded, leaving us to wonder if he was the primary tenant there or was a laborer for that tenant.