Walt, sorry, I was lurking... 
Well let's flesh this reply out a bit...
Whaley's records precludes Oswald from being his passenger.Whaley's trip manifest indicates that picked up the man who was wearing a Blue jacket and trousers at 12:30 and delivered that man to 500 N. Beckley at 12:45.
The WC investigators determined that Lee was at the TSBD at 12:33 and ten walked east on Elm street and boarded a bus, but the bus became stuck in traffic and Lee got off the bus at 12:44. He then walked to the Greyhound bus station taxi stand and hired a taxi ( time 12:48 ) to take him to the rooming house.
So Lee was just beginning his taxi ride three minutes after Whaley discharged the man who was dressed entirely differently than Lee Oswald.
So even if Whaley made the entries after the trip and merely separated the trips into 15 minute intervals Lee wasn't even in a taxi at 12:33 when Whaley estimated his passenger climbed into his cab..... And Whaley had already discharged his passenger at the time that Lee was just getting into a taxi.