there is a group of 4 deeds from a J Howland that went thru court in 1846 one to a J Howland and another to W Howland

your Wm became proprietor of Loudas by 1851 - how? possibly that deed might help

I haven't reached this year of deeds yet (still in mid 1830s) - might have a look in a week or so when Museum library reopens