Acker Cecil James Albert

Cecil was married to Laura Mann in Invercargill New Zealand, then left her and married my grandmother Margaret Elizabeth Dawson and her name on the marriage certificate is Peggy Munroe her alias in 1935 under the name of James Munroe. He has been listed in the NZ police gazette as using the alias James Munroe. He then left my grandmother in 1949 at Taupo never to be seen or heard of again. If anyone can give me any information it would be greatly appreciated.