This concerns the Hiroshima Mathematical Journal, Vol. 39, No. 2, July, 2009, pp. 293–326. In Table 3.4 on page 315, an a‰ne resolvable SRGD design of No. 7 with parameters v 1⁄4 27, b 1⁄4 36, r 1⁄4 12, k 1⁄4 9, l1 1⁄4 3, l2 1⁄4 4 and q2 1⁄4 3 presents the information of ‘‘Non-E’’ in Source 1. This is not correct. For this design we should list ‘‘?’’ in Source 1. Accordingly, in the line þ10 on page 316, ‘‘of Nos. 7, 14, 16, 17, 18, 32, 34 and 35’’ should read ‘‘of Nos. 14, 16, 17, 18, 32, 34 and 35’’. On page 324 the ‘‘only six designs’’ in the line þ7 and the ‘‘five SRGD designs’’ in the line þ8 should be ‘‘only seven designs’’ and ‘‘six SRGD designs’’ respectively. Recently it is realized that the design of No. 7 can be constructed by using an a‰ne plane of order 3 and mutually orthogonal Latin squares of order 3. The same consideration can also be utilized to construct an a‰ne resolvable SRGD design of No. 12 with parameters v 1⁄4 64, b 1⁄4 80, r 1⁄4 20, k 1⁄4 16, l1 1⁄4 4, l2 1⁄4 5 and q2 1⁄4 4. The present idea of construction will be discussed and generalized in a forthcoming paper.