The papers in this series pertain to the estate of JBS Haldane and his wife, Helen Spurway Haldane. JBS Haldane died in 1964. Following Helen Haldane’s death in 1978, PM Bhargava and his wife, Manorama Bhargava, handled her estate and corresponded extensively with JBS Haldane's sister, Naomi Mitchison, and her grandson, Graeme J Mitchison. Included here are letters, notebooks, handwritten notes, share certificates, financial documents, JBS Haldane’s Last Will and Testament, Helen Haldane’s autopsy, and articles on the Haldanes by PM Bhargava and other researchers. Certain letters also pertain to the dispatch of JBS Haldane’s personal papers to his family in the United Kingdom. These are a combination of originals and facsimiles. This series includes one photographic print and a newspaper article announcing Helen Haldane's death. Note on subseries: The files within the Correspondence subseries have been organized based on the original order of subject-wise arrangement. Letters within each broad subject have been arranged alphabetically and then chronologically, except in special cases. Certain key documents, such as official records, were removed and kept in the Official Records subseries. The share certificates under the Official Records subseries are oversized and have not yet been boxed. The third subseries contains personal papers, possibly compiled by JBS Haldane himself. It includes a notebook, handwritten drafts of his last will and testament, and notes on his surgical history, along with correspondence. These drafts were written by JBS Haldane in November 1962, when he was preparing for an operation in London.

This contains letters pertaining to discussions related to estate duty and Haldane family assets. These letters are mostly from 1979 to 1980. However, with the exception of an email from Kriti Kapila that belongs to the year 2012. This also contains handwritten notes, estate duty challans, and entry permits.

This contains letters related to legal matters and accounts of the Haldane family. This also contains two certificates and a visitor proposal form from the British Council.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All these letters are from GJ Mitchison, the great-grandson and heir of the Haldanes. This also contains a few handwritten notes and a telegram.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All these letters are from GJ Mitchison, the great-grandson and heir of the Haldanes. This also contains two challans and one telegram.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All letters in this are either addressed to or written by Naomi Mitchison.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All letters in this are either addressed to or written by Naomi Mitchison.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All letters in this are either addressed to or written by Naomi Mitchison. These are mostly related to the manuscripts of JBS Haldane and Helen Spurway Haldane.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All these letters are from people with last names arranged alphabetically from M to P. This also has an envelope and a handwritten note, as well as a handwritten letter. This file does not include letters from Graeme and Naomi Mitchison.

This contains letters pertaining to the death and estate of Helen Spurway Haldane. All these letters are from people with last names arranged alphabetically from R to S. This also has a few handwritten notes.

This contains letters pertaining to Helen Haldane's estate. All these letters are from people with last names arranged alphabetically from A to B.

This contains letters pertaining to Helen Haldane's estate. All these letters arranged from people with the last names Chandra to Chaturvedi. This also contains two telegrams and one envelope.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or sent from Chenoy.

This contains letters pertaining to Helen Haldane's estate. All these letters are from people with last names arranged alphabetically from D to M.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or sent by Graham J. Mitchison. This also contains a telegram and a few handwritten notes.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Naomi Mitchison. This also contains a few handwritten notes.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Naomi Mitchison. This also has a handwritten note.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Naomi Mitchison. This also contains a few handwritten notes.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Naomi Mitchison. This also contains a few handwritten notes.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Naomi Mitchison. This also contains a handwritten letter.

This contains letters pertaining to Helen Haldane's estate. All these letters are from people with last names arranged alphabetically from N to R. This also contains a handwritten letter and two telegrams.

This contains letters pertaining to Helen Haldane's estate. All these letters are from people whose last names are Reddy. This also contains a handwritten letter and two postcards.

This contains letters pertaining to Helen Haldane's estate. All these letters are arranged from people with the last names Sadasivan to Sreeraman. This also contains a letter from Khushwant Singh.

This contains letters pertaining to Helen Haldane's estate. All these letters are either addressed to or written by Sreeraman.

This contains letters pertaining to Helen Haldane's estate. All these letters are from people with last names arranged alphabetically from S to T. This also contains a few handwritten notes and one envelope.

This contains documents related to Helen Haldane's possessions. This mostly contains handwritten notes.

This contains letters pertaining to Helen Haldane's estate and financial records. All these letters are from people with last names arranged alphabetically from A to B. This has two forms. This also contains a telegram along with a few handwritten letters and notes.

This contains letters pertaining to Helen Haldane's estate and financial records. All these letters are arranged from people with the last names Chandra to Chenoy. This also contains a telegram.

This contains letters pertaining to Helen Haldane's estate and financial records. All these letters are from people with last names arranged alphabetically from S to T. This also has a few receipts.

This contains a miscellaneous, loose collection of documents pertaining to Helen Haldane, including payment receipts. This contains a few handwritten notes. This also contains a letter from Helen Haldane.

This file contains the final postmortem report of Helen Haldane, an authority letter from Graeme Mitchison, and other documents regarding Helen's estate.

This file contains the petition filed for letters of administration for the estate of Helen Haldane, an affidavit by Manorama Bhargava, and enclosed correspondence referring to these records. Includes handwritten notes.

This file contains four copies of the petition filed for letters of administration for the estate of Helen Haldane, an affidavit by Manorama Bhargava, and annexures. One copy is signed by Manorama Bhargava.

This file contains correspondence between Helen Haldane and MC Bhandari regarding JBS Haldane's probate papers and last will and testament and Suresh Dinker Jayakar's will, including its handwritten draft.

This file contains four copies of JBS Haldane's last will and testament.

This file contains estate duty, death, and share certificates and enclosing letters signed by V Rajagopala Reddy. Includes photocopies of the two share certificates mentioned in Reddy's enclosing letter. Originals are in a separate file due to being oversized.

This file contains eleven share certificates belonging to Helen Haldane and the Journal of Genetics.

This file contains twenty share certificates belonging to Helen Haldane.

This file contains twenty share certificates belonging to Helen Haldane.

This file contains eighteen share certificates belonging to Helen Haldane.

This file contains personal papers possibly compiled by JBS Haldane. It includes a notebook, handwritten drafts of his last will and testament, and notes on his surgical history, along with correspondences. These drafts were written by JBS Haldane in November 1962, when he was preparing for an operation in London. Two letters signed by Bhargava from 2004 were found along with these records.