Crowley S from Cork Ireland Who Settled IN Trundle Nsw

Hi
i am looking for a connection in the CROWLEY FAMILIES of Trundle NSW
who are connected to David CROWLEY and Catherine MEHEGAN, Cork Ireland.
i cannot seem to find the connection yet.

i have this information so far:

David Crowley married Catherine Mehegan in 1829 in Ballymodan, Cork, Ireland
Their children
David
Catherine
Johanna
Dennis
James David
Cornelius

James David Crowley emigrated to Melbourne Australia in 1868 aboard "southern cross", also on
the ship was John Crowley, 23 years, Blacksmith.

James David Crowley married Catherine Cameron in 1873 in Victoria.

My family tells me that we are connected to the CROWLEY's of Trundle, NSW
through David and Catherine Crowley, Cork, Ireland.

Thanking You
Suzanne