Girl Detectives

JF Beil                The Red Blazer Girls (series)
JF Buckley          The Fairytale Detectives (The Sisters Grimm Series)
JF CHILD             Ruby Redfort Look into my Eyes
JF Fitzhugh         Harriet the Spy
JF FREEM            The Case of the Diamond Dog Collar
JF MARGO            Girl's Best Friend
JF MCCAL            The Great Cake Mystery
JF MEEHA            Hannah's Winter
JF Springer          The Case of the Cryptic Crinoline (Enola Holmes Series)
JF SUMMY           I So Don't Do Mysteries
JF VANDR            Sammy Keyes and the Wedding Crasher
 
Boy Detectives

JF Barnet             The Brixton Brothers and the Case of the Case of Mistaken Identity
JF BARRE              The 100-Year-Old Secret
JF Brown              Shadow of a Doubt: 51 four minute forensic mysteries
JF Cheshire           The Case of the Ancient Mask and Other Case Files (Saxby Smart, Private Detective Series)
JF Clements          Room One: A Mystery or Two
JF Freeman           Who Stole Uncle Sam? (Chickadee Court Mystery series)
JF Grisham            Theodore Boone: Kid Lawyer
JF Hunt                The secret of the sacred temple : Cambodia (Secret Agent Jack Stalwart)**
JF Mack               The Mystery of the Conjured Man (Sherlock Holmes and the Baker Street Irregulars Series)
JF Sobol               Encyclopedia Brown (series)
JF Santopolo         The Nina, The Pinta and the Vanishing Treasure (Alex Flint, Super Sleuth Series)
JF Stilton              Geronimo Stilton (series)
JF Van Draanen      Sammy Keyes and the Skeleton Man (Series)
J/Graph TinTin       TinTin
 
Boys and Girls Team Up

JF Anderson          Jasper Dash and the Flame-Pits of the Delaware
JF Buckley            NERDS : National Espionage, Rescue, and Defense Society / (series)**
JF Balliett             Chasing Vermeer
JF Byers               The Death Stairs: A Herculeah Jones Mystery (series)
JF McCall Smith      Max and Maddy and the Chocolate Money Mystery (series)
JF RIDDE               Ottoline and the Yellow Cat
JF Warner             The Box Car Children Mysteries
JF Young               STORM : the Ghost Machine (series)**
J/Graph Davis        The Secret Science Alliance: And the Copy Cat Crook
 
 
** spies, not detectives