Catherine O'Leary (née Donegan; March 1827 – July 3, 1895) was an Irish immigrant living in Chicago, Illinois, who became famous when it was alleged that...

Patrick O'Leary (1869 – January 22, 1925) was a gambling boss and saloon owner in Chicago. His parents were Patrick and Irish-born Catherine O'Leary, in whose...

Mrs. O'Leary's Cow can refer to The cow belonging to Mrs. Catherine O'Leary, often blamed in folklore for starting the Great Chicago Fire of 1871 "Mrs...

rugby union player Troy O'Leary (born 1969), American baseball player Brian O'Leary, American "scientist-astronaut" Catherine O'Leary (1827–1895), owner of...

Terrence Thomas Kevin O'Leary (born July 9, 1954), sometimes called Mr. Wonderful or Maple Man, is a Canadian businessman, investor, journalist, and television...

Resistance member Albert Guérisse Patrick O'Leary, husband to Catherine O'Leary of the Great Chicago Fire Patrick I. O'Leary (1888–1944), Australian poet and journalist...

O'Leary family denied this, stating that they were in bed before the fire started, but stories of the cow began to spread across the city. Catherine O'Leary...

composed for the Beach Boys' never-finished album Smile. Named after Catherine O'Leary and the Great Chicago Fire, the track was originally conceptualized...

Matthew "Ray" O'Leary is a New Zealand comedian, TV personality and actor, known for his deadpan humour and large grey suit. O'Leary grew up in Whanganui...

Hugh Richard O'Leary (born 19 July 1974) is a British accountant. He is married to Liz Truss, who served as Prime Minister of the United Kingdom from...