In the early 50's they did a Posada at the Catholic church in our 
town, Stockton Ca. that had the largest Mexican population.  My 
brother and cousin were both 5 years old and recruited to be 'Indios" 
for the Posada which was made up of children only.  We still laugh to 
this day about how humiliated these macho little boys were to be 
dressed in white pants and shirt and have an orange crate full of my 
dish's strapped on their backs.  They went to different 'stations' 
asking for help but were refused until they got to the church where 
they asked and were admitted.  Everyone got a bag with an orange and 
some popcorn after.  Sadly that's all any of us remember about the 
Posada.  The tradition was discontued by the church by the 60's.... 
another lost tradition from Old Mexico....
Linda in WA.