Cleveland, O., June 15.- Mrs. Blaekman of 405 Perry street, who claims to be the legitímate daughter of Barney Barnato, will at once take steps to acquire a share of his fortune. Mrs. Blackman and her husband will at once proceeed to London for the purpose of demar.ding her interest in the fortune. Mrs. Blackman claims to be a daughter of Barnato by his first wife, whose maiden name was Anna Esther. She says the couple lived together in London for flfteen years and fir.ally went to Yagestrof, Poland. Later a separation occurred and the mother and daughter came to this country. Mrs. Blackman is determined to go to Johannesburg if necessary to prosecute her suit.