Sparke’s grandfather and namesake originated in Cheshire but settled in the Devon borough of Plympton Erle, which he served as both mayor and MP in 1554.
Sparke’s father was probably the ‘John Sparke the younger’ who wrote a journal of John Hawkins’† voyage to America in 1564-5, and provided the earliest-known English description of potatoes and tobacco. Subsequently he became a notable figure in Plymouth, marrying the heiress of its sometime mayor, Gregory Cock, and serving as mayor himself in 1583 and 1591. Although he described himself as ‘merchant’ in his will, he had also by 1597 adopted the style of ‘gent.’, and during the 1580s acquired a substantial residence in Plymouth, the former Carmelite friary. By the time of his death he owned ‘a great estate as well in lands and rents as in leases, goods and plate’.
Sparke was clearly a major figure in Plymouth. In 1621 he joined with the town clerk, John Fowell, in leasing Sutton Pool, Plymouth’s inner harbour, which was Duchy of Cornwall property and a source of friction between the Duchy and the borough.
Sparke’s career, at both business and personal levels, was significantly influenced by his marriage into the Rashleigh family. His eldest son was born in Fowey, and had settled there when he died in 1633. Sparke himself was appointed overseer to his father-in-law’s will in 1623, with additional responsibilities as a trustee for his brother-in-law John, who was probably mentally retarded.
Throughout the 1620s John Glanville and Thomas Sherwill monopolized Plymouth’s parliamentary seats, and this may have encouraged Sparke in 1628 to seek election elsewhere. His nomination at Mitchell can be attributed to the Rashleighs, who enjoyed kinship ties to the borough’s major patron John Arundell*, and who appear to have effected the election there of Sparke’s nephew John Sawle in 1624.
In 1639 Sparke reacted to the news that the Scots were demanding a Parliament: ‘please the king to grant [it;] it is thought all business now in question will rest quiet, which I pray God direct the king rightly to consider to his glory’.
