Which preposition to use with processionals

of Occurrences 9%

Looking backward over the moving processional of the nations of the earth, we may see how, without rest, without pause, through countless ages, the myriad legions of men have been passing across the scene of lifepassing, and fading away!

in Occurrences 2%

Is there any other processional in the world's history which, numbering such millions and millions, began with only one?

at Occurrences 1%

Three motor-cars, their engines chugging out into wide areas of stillness, stood processional at the curb.

Which preposition to use with  processionals