Power/Walsh/Leahy/Sinnott family from Callan

Greetings to the Callan community,

I was hoping to find out more about my Power ancestors. First Power I know of is a John Power born abt 1765 and died in Callan 24th Oct but year is not clear. He married a Eleanor Walsh (1767-1810).

My lineage is their son James Power 1796ish-1853 and he married Marry Sinnett (abt 1796-1881) and they seemed to have lived in Mallardstown, Callan. 

James seems to have had the following siblings:
Anastasia, Ellen, Patrick, Thomas (1790ish and possibly married an Anastasia Ready), Edmond (1799 and possibly married a Margaret Donwney) and Margaret (1800)

My James and Mary seemed to have had the following children:
Thomas, Patrick (1821), John (1824), Margaret (1827), James (1830), Catherine (1833)

My lineage is via James (1830-1911) who married Mary Leahy (1846-1928 - date may be incorrect as she seems to have been giving birth well in to her 40s?)
Their offspring were:
Anastasia (1872 and went on to marry Michael Corcoran in Kill O' The Grange in Co Dublin- my decendants), Patrick (1874), Marie (1878), John (1880), James (1881), Ellen (1886), Edward and Thomas (twins 1890).

Any family connection would be fantastic, especially on the earlier family. I am also keen to try and establish links to POwers in Wexford and Waterford as I seem to have DNA links to Powers there but can't seem to get out of Callan!

Many thanks to you all.