Racine, WI: Whitman, (ca 1970.). Hardcover - While not as well known as Nancy Drew, this is many girls' favorite series: Trixie is a real 13 year old girl, with chores, school to attend, a little brother to babysit - but lots of adventures! This copy is in the plain or "thin" format used in 1970-1971 with matte illustrated boards and illustrated endpapers 16 titles listed in book with "new" after #16.. 212 pp. Cover by Larry Frederick.