- The website is primarily created from personal research by me (Rahul Singh Guleria).
- The artefacts and information available in ancestral village of Darkati, Jawali, Himachal Pradesh has been shared by my Chacha ji and Chachi ji (Shri Ranjit Singh Guleria and Smt Urmila Guleria).
- A number of family details have been provided by Ambika bhabhi (Ambika Rangra Guleria).
- Some of the other public references / research items are as below
https://en.wikipedia.org/wiki/53rd_Sikhs_(Frontier_Force)
https://www.clevelandart.org/art/2018.89
https://collections.mfa.org/objects/148824/raja-bikram-singh-of-guler-ancestral-portrait
http://www.theindianportrait.com/artwork/raja-man-singh/
https://archive.org/
https://www.indianrajputs.com/