To Gen Schenck From Michael Graham July 18 1863

              Baltimore July 18, 1863 
To Major Genl. Schenck  
	                   Sir allow me to submit 
to you the opinion of the Rebel prisoners confined 
in Baltimore city jail the best informed of them all 
state that General Lee’s force that crossed into 
Maryland and Pennsylvania was composed of the  
force Ewel at the lowest estimation of 30 to 3500 
that was composed of infantry and artillery they also 
state that Longstreet’s force that crossed the river 
was from 45 to 50,000 strong composed of infantry and 
artillery they also state that at P Hills force at the 
lowest estimation numbered from 30 to 35,000 infantry 
and  artillery  independent of this was Stewart’s Calvery 
numbering 1800 strong they also state that Genl’ 
Milroy was attacked at Winchester by Hewel’s forces 
of infantry and artillery 35,000 strong with Longstreet’s 
forces in supporting distances the also state that Jenkins 
calvary force crossed the Shanadoah River at Berryville and found 
McRenolds retreating to Winchester they followed on close 
to Winchester changed there course and struck for  
Martinsburg to dispose of that post and gather up what 
might escape from  Winchester the also state Imboden 
Calvary post number 1200 strong was intend to pick 
 up what might escape by the way of Romney and 
Hancock Lee’s whole infantry force crossed  
at front royal over by the way of Chester Gap and Thornton Gap 
there is a great many willing to go north and take 
the oath they state that the most artillery was 
107 pieces at the battle of Gettesberg they also state 
that they had but 10 rounds of annution left for  
their artillery when they retreated from Gettesburg 
they suffered greatly for bread while in Maryland 
they had all the beef they wanted while in 
Maryland and Pennsylvania they also state