1-How were the names and addresses collected for city directories? Did
census takers visit homes, did people go to city hall or other central
location to report their names and addresses, was it done via mail, or
some other means?

2-Did the directory authors simply continue listings >from year to year
unless told otherwise? That is, could a spelling error be passed down

from directory to directory in this manner if no correction was made?

I am particularly interested in the directories >from the first decades
of the 1900s in New York City, New Haven and Newark.

Thanks again to all the repondants to my previous question about
city directories.

Dave Rafky
Miami, Florida