Liam Thaddeus Padraic Mario Leo McKay passed away at home on January 19, 2021 following a long illness.  He is survived by his beloved children Alexandria, Padraic, and Kennedy, whom he often spoke of in glowing terms; and former wife Manal Michail.  Liam was the youngest of 9 children born to Catherine and Leo McKay, and is greatly missed by his 4 brothers, Michael (Linda), Daniel (Beverly), Peter (Gretchen), and John (Elisa); 3 sisters, Kerrigan, Catherine(Dean Wolfe), and Christine Sarf (Mike); and a large extended family that includes 17 nieces and nephews and 4 great nieces and nephew.  He was predeceased by his brother Matthew, sister-in-law Terrie, and his brother-in-law and dear friend Dean Wolfe.  Liam was born in Chicago Heights, IL, and grew up in Wallingford PA and Ft. Lauderdale, FL.  His childhood nickname was Prairie Grass because his father said his hair was the same color as the Illinois prairie grass in the fall.  He had a sharp intelligence and keen sense of humor, a hidden talent for drawing, and a love of deep-sea fishing and scuba diving.  He is missed more than he would have imagined.