Since I model the Zephyr-Rocket on my HO layout in 1963, I've done some 
  
amount of research on it.
Let's review the public timetables of the 
  era:
The November 1959-April 1960 Public Timetable indicates:
- The 
  American Royal had a Vista-Dome Buffet-Lounge car Chicago-Kansas City.
- 
  The Zephyr-Rocket had Diner-Lounge St Louis to Burlington.
The 
  May-October 1961 Public Timetable indicates:
- The American Royal Zephyr 
  carried a Diner-Lounge Chicago-West Quincy 
and return.
- The 
  Zephyr-Rocket carried a Diner-Lounge northbound for dinner and 
return to 
  St Louis for breakfast (no drop off location indicated). 
However, the Rock 
  Island had already dropped dining service on their 
portion, so the turn 
  point was either Burlington or West Quincy. There 
was sufficient dwell 
  time at both stops that a move could be made.
The May-October 1962 
  Public Timetable indicates:
- The American Royal Zephyr carried a 
  Diner-Lounge Chicago-West Quincy 
and return.
- The Zephyr-Rocket 
  carried a Diner-Lounge car to West Quincy for dinner 
and return to St 
  Louis for breakfast.
The November 1962-April 1963 Public Timetable 
  indicates:
- The American Royal Zephyr carried a Diner-Lounge Chicago-West 
  Quincy 
and return.
- The Zephyr-Rocket carried a Diner-Lounge car to 
  West Quincy for dinner 
and return to St Louis for breakfast.
The 
  May-October 1963 Public Timetable indicates:
- The American Royal Zephyr 
  carried a Diner-Lounge Chicago-Galesburg and 
return.
- The 
  Zephyr-Rocket still had it's sleeper, but did not have any dining 
  
service.
The November 1963-April 1964 Public Timetable 
  indicates:
- The American Royal Zephyr carried a Diner-Lounge 
  Chicago-Galesburg and 
return.
- The Zephyr-Rocket had lost it's sleeper 
  and any dining service.
So there is a window from May 1962 to April 
  1963 where such a move would 
of been possible on an emergency basis at 
  West Quincy. However, the 
Vista Dome Buffet-Lounge car would have had to 
  pinch hit for the 
standard Diner-Lounge service based on what is shown for 
  both trains.
Heavyweight diners #307 and #308 were the regulars on the 
  Zephyr-Rocket 
with #326 sometimes being mixed in. NKP Car Products makes 
  kits for 
these cars for HO modelers. Greg Stout's book Route of the 
  Rockets 
mentions on a very occasional basis that Silver Star, Silver 
  Fountain, 
Silver Bowl, Silver Manor and Silver Patio would show up in the 
  train 
when the diner was being switched out at Burlington. The diner would 
  be 
brought out from Chicago to Burlington on nameless Train 15 to be put 
  on 
the southbound Zephyr Rocket. By the late 1950's/early 1960's both 
  
roads were losing interest in the train (the service information for the 
  
Zephyr Rocket is a small footnote in the public timetables listed above 
  
after 1960).
The TRRA Historical Society has recently announced 
  their next bulletin 
to be published in November 2012 will have an 
  extensive article on the 
life of the Zephyr-Rocket. If they have dug out 
  some of this additional 
car use information, I expect it will be in the 
  article. They have 
already done a fine job covering other St Louis-based 
  passenger trains.
Bill Hirt
On 2/8/2012 10:48 AM, smokyjoe66 
  wrote:
> Zephyr Rocket/American Royal Zephyr
>
>
> 
  Regarding the cutting out of Silver Patio or Silver Garden from the American 
  Royal Zephyr at West Quincy to be picked up by the Zephyr Rocket I have no 
  information to contribute. But, I, too, would like to learn if this was a 
  regular move in the early 1960s. The ARZ was an overnight run between Chicago 
  and Kansas City, with West Quincy being about halfway between. So, on its 
  face, it is difficult to understand why this would have been done. But, the 
  explanation would become clear if the answer contained specific times and days 
  of the week when the pickup and drop-off by the ZR occurred.
>
> 
  Interesting question. Hope the answer is forthcoming from someone.
> 
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>
> 
  --- In CBQ@yahoogroups.com, Duncan 
  Cameron<d.cameron@...> wrote:
>> Group,
>> I'm 
  pursuing any evidence that, probably in the early 1960s, the Zephyr Rocket 
  picked up a Vista-dome chair-dormitory-buffet-lounge car, either #320, Silver 
  Garden, or #321, Silver Patio, from train #55, the westbound American Royal 
  Zephyr, at West Quincy, and that the northbound ZR would then drop the car to 
  be picked up by the eastbound American Royal, #56. If anyone can confirm such 
  a move, I'd appreciate hearing about it.
>> Duncan 
  Cameron
>>
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