While researching the previous article I re-examined the marriage certificate for William Henry ASHFORTH 1851-1899 and Ellen TOMLINSON 1855-1943. I had been unable to fully decipher the witnesses' names, yet I am aware sometimes knowing the names of witnesses can provide a breakthrough in research brickwalls. With this in mind I took another look at the witnesses' names:

This marriage was solemnized between us: William Ashforth, Ellen Tomlinson her X mark
in the Presence of us, Thomas Mars??? Sanders, Sarah H??????? her X mark

I have always been convinced Thomas Mars??? Sanders is in fact Thomas Marsden Sanders. With this in mind and realising Thomas Marsden would not occur very frequently I ran a few searches. Eventually I found for the Sheffield region a single birth and a single marriage for one Thomas Marsden Landers. This is almost certainly one of the witnesses at William and Ellen's marriage.

Thomas Marsden Landers born abt. 1839
Thomas Marsden Landers marriage abt. 1860

Knowing the England and Wales Census 1861 records Sarah TOMLINSON age 15 together with Ellenor TOMLINSON age 5 in the household of Rhona TOMLINSON, then if I could only decipher the name of the second witness Sarah H???????, this too could help with my research. Was Sarah TOMLINSON a witness at her younger sister's marriage? If so, could this be Sarah's married name? All very frustrating!

Whether or not this all leads somewhere remains to be seen.