Can i have your opinion please

[Gert in Oz]

Marg has very kindly found me some baptisms for the Holmes family at Staffordshire RO for St Modwen`s Burton on Trent,

Both born Burton on Trent

Sarah Holmes born abt 1786 (1841)...1767 (1861)... 1784 (1871) married Edward Hill 1810 at St Modwen`s, first 2 children Elizabeth and John

Thomas Holmes born 1791 according to the 1841 and 1851 census, married Catherine Mottram 1811 in Warwickshire and have Thomas, Elizabeth and Isaac amongst the childrens names

Baptisms Marg Found,

2 July 1786 Isaac Holmes son of John and Elizabeth of Bond End, Burton
2 Mar 1788 Sarah Holmes daughter of John and Elizabeth of Bond End
31 May 1789 Thomas Holmes son of John and Elizabeth (no abode listed)

And burials
21 Aug 1781 Elizabeth Holmes daughter of John and Elizabeth
25 Aug 1781 Frances Holmes daughter of John and Elizabeth

Thomas Holmes son Isaac married Sarah Hill nee Holmes daughter Amelia at Manchester Cathedral....first cousins ??????

What i`m asking despite the difference between the baptism dates to the census dates, could these Baptisms be my Thomas and Sarah, making them brother and sister, please