Hi @kasthuri,
Another post discusses histological data resources, including those for human brain:
The Allen Human Brain Atlas has histological stains integrated with samples profiled by microarray analysis, and the Allen Cell Types Database also has histological data from multiple human brain samples, as subdivided tissue. This data is available if you click on the ‘Donor’ ID (first column) of the data site, here. A number of professional companies offer H&E staining services, and may have more information about whole human brain references (other than what you will find in print-based atlases). Good luck!