The Hildenbrand Mill: Beck-Hildebrand Mill Museum Association Collection. n.d. (Beck-Hildebrand Mill Museum Association Collection)
Quantity 1 folder
Originals/Copies Mix of some originals and some copies
Scope and Content
One non-copyrighted booklet by the Beck-Hildebrand Mill Museum Association entitled: "Hildebrand's Mills: Two Civil War Industries on Flint Creek, Cherokee Nation"
Series 1. Manuscripts. n.d. (Beck-Hildebrand Mill Museum Association Collection) [2008.78]
Quantity 1 folder
Folder 1. Booklet: Hildebrand's Mill: Two Civil War Industries on Flint Creek, Cherokee Nation. [2008.78] Sadly the booklet is not yet digitized, but if you think that there is a connection, let me know and I will be glad to swing by OHS and copy it for you. I can scan it or mail if you think it would be useful.
There is an interesting notation in the Newspaper Archive index for the Indian Journal, 12 April 1907, (by then relocated to Eufaula, IT) regarding a "James Beck":
Newspaper Title: Indian Journal (Eufaula)
Article ID: WPA0060549
Subject: Murder; Midland Valley Railroad
Notes: April 5-26 bound in reverse order
Name: Beck, James
From my experience and that of my daughter in her intern days at OHS with QuadraStar, this does not mean that James Beck was necessarily the victim of murder, only a name mentioned in the article. The entry indicates that OHS does not have the I.J. on microfilm for that date. Again, if you would like, I will stop by to try and copy the article as it appears that they have the bound volumes.
If there is a Cherokee connection to your J.P. Beck, then there is also a photo of historian Carolyn Foreman with a Mrs. Susie Beck Chandler, a Cherokee, in Jay, OK. The lady is in her late 60's or early 70's when the photo was taken in 1935. It is available online in the Star / Archives as:
Grant Foreman Collection
Box 1 [Box 1]
Cherokee Indians - Carolyn Thomas Foreman (right) with Mrs. Susie Beck Chandler, a Cherokee, south of Jay, Oklahoma
Photograph (black and white): 24. Cherokee Indians - Carolyn Thomas Foreman (right) with Mrs. Susie Beck Chandler, a Cherokee, south of Jay, Oklahoma. 17 February 1935. 
There is also a Beck family that were early settlers in the North Central Oklahoma area in the old "Three District" area of River Valley and Dayton, Grant and Garfield Counties. Biographical sketches include a Stephen Arthur Beck in the Three District Association of Old Settlers Collection. 1824-1957/1860-1940. This collection is not yet digitized. A "T.E. Beck" compiled a scrapbook of newspaper clippings from the Enid area circa 1900 (perhaps related to the Stephen Arthur Beck), but the entry does not provide further accession info on the donor.
An I.E. Beck is referenced in the manuscript collection of the first curator of the OHS in Box 3, folder 13, and the last date of any corresp. would have been no later than 1928.
There was also a "Mr. Beck" photographed in 1902 with other Territorial teachers at the Jones Academy. He appears to be in his 50's or 60's with mutton chops and is sporting some type of fez - Indian or Mandarin. One of the teachers in the left of the photo is a young Army officer. It is available on line in the Star / Archives as: McGrath-Benedict Collection
Box 1 [Box 1]
Schools - Indian - Jones Academy - "Indian Territory Teachers, 1902." L. to R.: 1. Mr. Mislson (?), 2. Miss Rainey, 3. Mr. Beck, 4. Miss Helen Severs,
5. Mr. Wallace Butz.
Photograph (black and white): 13. Schools - Indian - Jones Academy - "Indian Territory Teachers, 1902." L. to R.: 1. Mr. Mislson (?), 2. Miss Rainey, 3. Mr. Beck, 4. Miss Helen Severs, 5. Mr. Wallace Butz. 1902. .
The Oral History collection includes interviews with a Mrs. Martha Musgrave Beck (conducted 1874 -1987) who apparently lived in early day El Reno, OKC, and Noble, OT. This same group also includes interviews with a Mr. Steve Beck (Lawton, OK) conducted in 1994 and Mr. William Beck (Wilburton, OK) conducted in 1984.
I am sorry I misunderstood about the connection with Slayback and Beck and the nature of your search. Good luck. Greg