Ellis Cummins Crawford (of Behringer-Crawford fame) wrote about the Rogers Site, and Indian Mound Excavation, between Petersburg and Grant.  It's here.  (pdf)

"B. B. Hume, the greatest horseman that Boone County ever knew, has sold half his interest in the Allphin & Hume Livery & Sale Stable at Walton to Scott Chambers of Petersburg, an experienced undertaker, who with ex-sheriff B. B. Allphin will engage in the undertaking business in conjunction with their undertaking business. The Cincinnati Coal and Coke Co. are negotiating with Mr. Hume to take charge of their stables but he is undecided yet."  from the Warsaw Independent, January 20, 1906

The mother of all Ohio River Steamboat sites is the Cincinnati Public Library's Inland River Photographs.  They estimate 19,000 photographs.  See'em here.

Boone County was formed from a part of Campbell County in 1799.  It was the 30th county to be formed in Kentucky, and is named for, uh, Daniel Boone.  (You knew that, right?)  More info?  Google lists about 1,390,000 or so mentions for Dan'l, here, or, you can read his bio.  That's a link to a good Boone biography at Amazon on the right. Recommended.

Information on the four covered bridges that used to serve in Boone County are listed in the data base at web site of Kentucky Covered Bridges, here. 

In October of 1926, the Cincinnati Auto Club suggests this route from Cincinnati, through Kenton, Boone, Grant, Pendleton, Campbell and back to Cincinnati.

Remember when the Licking River flowed north to Hamilton, Ohio, and the Kentucky River turned northeast at Carrollton and headed for Cincinnati?  No? That’s because you were born after the last glacier left the area.  Read all about it, here.

Verona

Walton

"On Sunday last week, about twenty slaves belonging to citizens of Boone county, escaped from their masters.  They belonged to different individuals, and so well was the plan of escape matured, that at last accounts, nothing had been heard of them.  They were without doubt aided by Abolitionists of Ohio or Indiana.  The people of Boone county, a may well be supposed, are justly excited and indignant at this new and heavy outrage upon their rights."  from the Louisville Daily Courier, April 11, 1853.

Before King's Island, before Coney Island, and even before the Ludlow Lagoon, there was Boone County's Parlor Grove Amusement Park.  Read all about it, here.

Covington's Mary Ann Mongren Library has one of those "Wow!" features online.  If, after going here, and entering Walton, Petersburg, Hebron, or whatever, you sometimes - not always - get back actual links to high quality images of Northern Kentucky Newspapers from the 1800's.  I find it more helpful to sort them by the oldest article first. They're pdf images.  There's a feature in your Adobe pdf viewer that let's you magnify the images.  Play with it - I think you'll find it a great feature, and you'll be surprised at how much information from "outside I-275" is in the early Covington and Newport papers. 

"A Negro named Scales, who had just been discharged from the Cincinnati Workhouse and had obtained employment  on a farm in Boone County, Ky., made brutal assault last Saturday upon the 5-year-old daughter of a poor man named Lundsford.  The Negro knew that the child was alone n the house before he entered it.  As the Negro threatened to kill her is she told, the little one did not tell her mother until the pain compelled the disclosure.  Scales was arrested and with difficulty taken to the Burlington Jail.  Last night a mob gathered at Florence, and in wagons and on horseback went to Burlington, broke into the jail, carried the Negro to the woods on the turnpike road, and there hanged him to a tree."  New York Times, September 12, 1885

A nifty little tool at the web site of the Minneapolis Federal Reserve will convert old prices (1913 and later) into current prices. Try it here.

This graph shows the relative populations of the eight smaller counties of Northern Kentucky Views, from 1800 to 2000.

This graph shows the relative populations of the Boone, Kenton & Campbell Counties  from 1800 to 2000.

This graph shows the relative populations of the Boone, Kenton, Mason & Campbell Counties  from 1800 to 1860, along with Jefferson and Fayette, just for reference.