Located Through Postcard/.Pittsburg, Pa., Feb. 22.—The arrest in New York of James A. Baker, with many aliases, and an alleged murderer and railroad station robber, was brought about through souvenir postcards sent to Miss Hilda Joyce, an estimable young woman of this city, who knew nothing of the man’s past life. Baker last visited the Joyce home on Feb. 13. During the Christmas holidays Baker, who knew every police department in the country was looking for him, played the piano and sang a duet at the Joyce home with the mother of a well-known Baltimore Ohio official who was actiVe in the search. Nothing can be found of the wife Baker says is located here, or even a fiance.