Mostly, it's a poor-quality image. But if you look at the 'a's, the scribe consistently bears down on the back (left side) of the letter. The left side of that second letter is light, in a way you don't see in Isaac, Williams, Jan'y, Michael, Jordan, etc.
I cheated and looked for a Writ family, and failed to find any in Logan County. There were Ritts and Reits and other variations in nearby counties.
Also, Isaac got married again in 1840, but I couldn't find a death or burial for Lydia Williams.