Devon Cromwell is 5' 9".
No, Oliver Cromwell did not live in Devon. He was born in Huntingdon, England, in 1599 and spent much of his life in East Anglia, particularly in Cambridgeshire and Hertfordshire. While he may have visited Devon during his military campaigns, there is no record of him residing there.
Mark Cromwell is 6' 2".
Nolan Cromwell is 6' 1".
Richard Cromwell is 5' 10".
Teon Cromwell is 6' 0".
Devon Soles is 6'.
Devon Spence is 6'.
Richard Devon is 6'.
Devon Newberry is 6'.
Devon Read is 6'.
Devon Coull is 6'.
Devon Greggory is 6'.