Possibly by Read or his son, also called Richard (1796-1862) 
Identity of artist is unclear. The size & composition of the drawing is similar to signed works by Richard Read Junior (see "Rock Lily of New South Wales" at ML 1341) but the inscriptions on the reverse of the drawing are more appropriate to his father Richard Read Senior (c. 1765-?), who was transported for fourteen years for knowingly possessing forged notes. He arrived in the colony in 1813