Here's what I have in my file:
Baltimore Sun - 1/31/61 - Vincent flag for Morris Island battery
Char. Courier - 3/13/61 - Vincent flag for Gov. Pickens
Char. Courier - 3/15/61 - several flags listed
Char Courier - 3/19/61 - Vincent made CS First National
Char. Courier - 4/26/61 - several Vincent made flags
Char. Courier - 3/21/61 - Vincent made flag for arsenal
Char. Courier - 4/15/61 - mention of flag raised over Ft. Sumter, probably the Vincent made flag of 3/13 and 3/15 articles
Char. Courier - 5/3/61 - Vincent made flag for Ft. Caswell, NC
That's all that I have in the Vincent file - there's probably a few more flags he made in the files for what theyw ere made for.
I don't trust the indexes personally - I just cue up microfilm rolls and start scrolling and find all that I have this way.
Hope this helps.