Federal Reserve Bank of Philadelphia
Centocor
Business Week Magazine
Standard & Poor's
The Glenmede Trust Co.
Wyeth-Ayerst Laboratories
Specter, Gadon, & Rosen, P.C.
Price Waterhouse
Mc-Graw Hill Publishing Co.
Pepper Hamilton L.L.P.
Advanta Corporation
Core States Bank
Bell Atlantic
Quaker Chemical Corporation
Drinker, Biddle, & Reath L.L.P.
Blue Cross & Blue Shield
AIG Insurance Co.
Methodist Hospital
Rhone-Poulenc Rorer
Towers Perrin
Meridian Bank
Blount
IBM
Kemper Environmental
Madison Bank
Reliance Insurance Co.

Southco Inc.

Astra Zeneca
Turner Investment Partners
Penn Cardiology
Hospital of the University Of Pennsylvania
The Scottoline Trust
Pilgrim Baxter
National Property Analysts
Alabama Farm Bureau Inc.
Laurel Club
Linpro Co.
AmSouth Bank N.A.
The Enstar Group. Inc.
ITEC, Institute for Total Eye Care
Provident National Bank
Carey, Cramer, Pelusi, Pettit, & Tanichelli
Sullivan-Payne
Danella Company
Marshall, Dennehey, Warner, Coleman, & Goggin
Ballard Realty
Aronov Realty
Reid & Mount Advertising
Commonwealth Risk Services, Inc.
Prime Bank
Packard Press
Delaware Valley Financial Services
Commonwealth Land Title Insurance Co.

These are some of the collections in which the work of Clay Johnson may be found: