i did a serch on the net and found this...
The surname DAVENPORT neither comes from the River Devon, which flows into the English Channel (east side of Britain), nor from the proximity of a port in Cheshire (west coast of Britain, above Wales). The name traces back to our immigrant ancestor, Orme de Aunceporte, a Norman who came to England with William the Conqueror in 1066.
The Davenports were the hereditary foresters of the King, had their baronial lands in Cheshire. Under primogeniture, meaning the eldest son inherited all lands and titles, younger sons had to fend for themselves--meaning that by 1620, when the first Davenport (Lancelot) came to America, there had been as many as thirty generations of younger sons and their posterity who, being without the lands or titles, had gravitated to the lower ends of the economic scale and social classes.
If you will consult "Burke's Peerage," the Who's Who among the British nobles and blue bloods (available at most large public library reference rooms, particularly those who cater to genealogy), which is updated and a new edition published almost as regularly as the Guiness Book of Records, you'll find a large section devoted to the Davenports. The noble beginnings of the family are recounted, the coat of arms is shown (there are variations for the Catholic and Anglican branches of the family), the noble descent (oldest sons) of the family is detailed, and present Davenports of title are noted. This is definitive, not conjectural. Davenport is a generic name--not a derivative.
As hereditary foresters of the King, the Davenports were literally the game wardens on the King's hunting preserves (largely in Cheshire) and had the authorized power to put poachers to death without trial. Hence, the crest of the Davenport coat of arms originally was a serf's head with a rope around its neck, signifying that the Davenports had the power to hang without appeal to the King. Davenports who went on Crusades to the Holy Land upon their return substituted the head of a Saracen with a rope around his neck. When Henry the VIII broke away from the Catholic Church, those Davenports who followed him took the head of a priest with a rope around his neck as their crest. There was a canard started by baronial families jealous of the life and death authority suggested by rope around the neck, etc, to the effect that the crest signified that all Davenports deserved to be hung. There is a long, fascinating history of the Davenports among the minor nobility of England.
There is an old English doggerel that goes:
In Cheshire the Lees are as thick as fleas,
And there are as many Davenports as there are dogs' tails.
As descendants of younger sons who did not inherit the title nor right to the coat of arms, the history of the family is as much ours as the more favored.
mainly focuses on england though. i did find something about the name on this califrnian coastal site..but it wouldn't let me bring up the page..this is a little bit of what it said.
Davenport: Historic whaling community of 1870; John Davenport built wharf in 1880’s and town developed after Portland Cement began operations in 1906. Old jail and church date to 1914 and 1915. Cement Plant Road passes cement plant between town and pier.
TOWER OF POWER 2006