Morrow is an English surname of Old Norse origin, derived from the word 'marr', meaning 'horse'. It was originally given as a nickname to someone who had the characteristics of a horse, such as being swift or powerful. The name has been found in various parts of England since the Middle Ages, with early records including 'Roger Morrow' in the Hundred Rolls of 1273.
"The name Morrow experienced fluctuations in popularity over the decades, with peaks in 1918 and 1932, each having 6 births, and a later spike in 1953 with 5 births. However, there were no recorded births of this name in the intervening years between 1929 and 1953."