Dalston’s ancestors took their name from a manor which they leased from the bishops of Carlisle by 1301, and they regularly represented the county from 1383.
In 1608 Dalston was granted the governorship of Carlisle on an annual salary of £176 8s. 4d.
In the first Caroline Parliament Dalston was appointed to only one committee, for the wool export bill (27 June 1625).
Dalston succeeded to the family property in Cumberland in 1633. He represented Cumberland in both the Short and Long Parliaments until disabled as a royalist, after which he sat at Oxford; he was accompanied throughout by his son, William, MP for Carlisle, who was created a baronet in 1641.
