Thanks to Mike for the following information. Any chance of finding out if some of these children died in infancy as we're not sure what happened to them. We know that Mary Agnes lived.
Children of Michael Joseph McDonnell and Mary O'Sullivan (married 19th Jan 1898)
Bernard Hedwig 17th Oct 1899 Bernice Catherine 8th July 1902 Donald Patrick 11th March 1907 Dorothy May 11th March 1907 John Joseph 21st Jan 1904 Kathleen Edith 12 April 1910 Mary Agnes28th Oct 1898 Michael William16th Jan 1909