These are my McCrackens/McClures any connection?

Walter (aka Walker) married Sarah MCCRACKEN on 8 Jan 1836 in Girvan, Ayr, Scotland. Walter was counted in a census 1841 in Dailly, Ayr, Scotland. He was counted in a census 1851 in Girvan, Ayr, Scotland.

Walter and Sarah had the following children:
Elizabeth MCCLURE was born 22 Jun 1837 in Maybole, Ayr, Scotland. Elizabeth was counted in a census 1841 in Dailly, Ayr, Scotland. She was counted in a census 1851 in Girvan, Ayr, Scotland.

Agnes Fergusson MCCLURE was born 26 Jul 1839 in Ayr, Scotland and was christened 1 Sep 1839 in Barr, Ayr, Scotland.

David MCCLURE was born C1841 in Scotland. David was counted in a census 1841 in Dailly, Ayr, Scotland. He was counted in a census 1851 in Girvan, Ayr, Scotland.

Grace MCCLURE was born 1 Jun 1843 in Dailly, Ayr, Scotland and was christened 11 Jun 1843 in Dailly, Ayr, Scotland.Grace was counted in a census 1851 in Girvan, Ayr, Scotland.

Sarah MCCLURE. Sarah was counted in a census 1851 in Girvan, Ayr, Scotland.

Walter MCCLURE was born C1850 and was buried 14 Apr 1926 in Bundaberg General Cemetery, Qld, AUSTRALIA