Sarah Brown brickwall

I have been spending some time researching the mystery of my gx2 grandmother Sarah

She married my gx2 grandfather William Greathead in 1852. Their marriage certificate states Sarah was formerly Brown. In the 1851 census she was listed with her parents as single. All Ok you would say.

When their first child Thomas was born in1853 again she is listed as Sarah Greathead formerly Brown.

But, and here is the mystery when she registered her next three sons, (1855, 1858 and 1861)she is described as Sarah Greathead formerly Brown late Taylor.

Hey, where did this Taylor come into the senario.........

I searched the census records and discovered Sarah in 1851 and 1841, so am certain I know who her parents were and at least two of her siblings. One is called Edward which fits the information on Sarah's will where she mentions a brother Edward.

I have found many Sarah Brown marriages to men called Taylor but so far none fit the now known information. Assuming that she did not marry before her 16th birthday. I searched the marriage indexes and came up with a possible marriage in 1847. I have this certificate now, and it is a definate possibilty. Sarah's father is called Peter and works as a labourer. This agrees with the census, however her age is not quite right. Her father did not witness the marriage, so may not have attended. Maybe that is why she states she is 21 years of age, to avoid questions.

If she kept this marriage quiet and James Taylor died before 1851 it would account for her single status on the 1851 census.

I have four possible James Taylor deaths between 1848 and 1850. Just sent off for the first death certificate and am keeping my fingers crossed. Will this brickwall come tumbling down or have I just journeyed up another dead end..................?