Thomas Ryan b 1891 Pleberstown Kilkenny

Thomas was born to John and Margaret Brennan (?) in 1891 and appears in the 1901 and 1911 censuses.  The family lived in Bonnybrook House.  Thomas was arrested with others  in 1921 in connection with the War of Independence activities, reported in local newspapers. He was released in December that year.   I can find no trace of him after that.  Would be very grateful for information on him, such as marriage, children, death.  Many thanks.