Career
He created works for the firm of Rudolf Ackermann who ran the Eclipse Sporting Gallery at 191 Regent Street. He worked mainly in water-color although a few oil paintings do exist. Little is known about Martens" career beyond his work for Ackermann.
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Vittoria (The Light Dragoons)
Charge of the 4th Dragoons at the Battle of Salamanca (Queen"s Royal Hussars)
The 7th Hussars charging the French Cavalry at Waterloo (Queen"s Royal Hussars)
The Battle of Aliwal, January 28, 1846 (Queen"s Royal Lancers)
Ferozeshah, 22 December 1845 (Private Collection)
The Charge of the 14th Light Dragoons at Ramnuggar led by Colonel
Havelock (Queen"s Royal Hussars)
The Siege of Mooltan, 1849 (India Office Library and Records)
Cape Mounted Rifles, Kaffir War, 1850 (The Light Infantry)
Orange River, December 1852 (Private Collection).