The first meeting of Congress under the Constitutuon
...many of the 65 members of the House were not able to arrive by March 4, and a quorum was not reached until April 1, when Representative Frederick A.C. Muhlenberg of Pennsylvania was elected the first Speaker of the House.
That first session was held in New York City.
You can view the original Congressional Record of that first session, and the ones that followed through 2015, at the National Archives web site.
And we can all wonder what it must have been like for Congress to gather, find there weren't enough members present to conduct business, and then adjourn for a month until everyone showed up...