Use this site -
https://www.britishnewspaperarchive.co.uk See headings......Browse by....date....country....region
Select ....Country....Ireland
Options on the let hand side....Select ....Counties......Select.....Tipperary
Options on the let hand side......Select..... date....keep going down to 1850
Search terms "David Coughlan" (use the inverted commas)
Clonmel Chronicle 13 Mar 1850........you see bits of the article -
"William Ryan, David Coughlan, Mary CougLlan, Mary Walshe and Bridget Ilennesy, stood indicted, that on the 14th of February at Knocker, asmalted Martin Quigley. and stole from him, one dead pig, value ; one firkin of butter, value "
David COUGHLAN....Mary COUGHLAN......butter
Sounds like your family. This is a pay service and you need to create an account and buy some credits to see the rest of the image which might have more detail.