Portsmouth was a location in England.
History
20th century
In the 1960s, Ben Jackson served at Portsmouth. (PROSE: H.M.S. Tardis)
At some point in the 1970s, the Third Doctor, with the assistance of Captain Fenton of the Royal Navy, killed a monster that attacked a frigate in Portsmouth harbour. (PROSE: The Thing from Outer Space)
22nd century
In the 2150s, near the beginning of the 22nd century Dalek invasion, Victor and Jenny Chaplin were attacked by Daleks as the siblings were about go on a short boat trip together. Victor was subsequently turned into a Roboman. After the war ended, Victor was able to regain some of his memories, including that event in Portsmouth. (AUDIO: After the Daleks)
In the late 22nd century, Susan, Lucie Miller, and Alex Campbell were hid from the Daleks in a bunker near Portsmouth. (AUDIO: Lucie Miller)