sentences:  After a year of preaching in southern England, Whitehead became known as one of the Valiant Sixty who traveled as Quaker preachers during a time of religious persecution.Whitehead, James Parnell and Edward Burrough were the only teenaged males counted among the sixty (Elizabeth Fletcher and perhaps Elizabeth Leavens were 16 years old when they left Kendal to preach).Whitehead was frequently jailed.