Director/PDMR Shareholding

Henderson High Income Trust PLC
03 August 2005

                                  SCHEDULE 11

          NOTIFICATION OF INTERESTS OF DIRECTORS AND CONNECTED PERSONS

1. Name of company

HENDERSON HIGH INCOME TRUST PLC



2. Name of director

MR H J TWISS



3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18 or in respect of a non-beneficial
interest

BENEFICIAL



4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them (if notified)

PUDDLE DOCK NOMINEES LIMITED



5. Please state whether notification relates to a person(s) connected with the
director named in 2 above and identify the connected person(s)

DIRECTOR - MR H J TWISS - 98

SPOUSE - MRS C M TWISS - 222



6. Please state the nature of the transaction. For PEP transactions please
indicate whether general/single co PEP and if discretionary/non discretionary

REINVESTMENT OF DIVIDENDS INTO ISA



7. Number of shares / amount of stock acquired

DIRECTOR - MR H J TWISS - 98

SPOUSE - MRS C M TWISS - 222



8. Percentage of issued class

NOT MATERIAL



9. Number of shares/amount of stock disposed

-



10. Percentage of issued class

-



11. Class of security

ORDINARY SHARES



12. Price per share

136.0P



13. Date of transaction

2 AUGUST 2005



14. Date company informed

3 AUGUST 2005



15. Total holding following this notification

DIRECTOR - MR H J TWISS - 5,502

SPOUSE - MRS C M TWISS - 12,508

TOTAL HOLDING - 18,010



16. Total percentage holding of issued class following this notification

DIRECTOR - MR H J TWISS - 0.01%

SPOUSE - MRS C M TWISS - 0.02%

TOTAL - 0.03%



If a director has been granted options by the company please complete the
following boxes.

17. Date of grant




18. Period during which or date on which exercisable




19. Total amount paid (if any) for grant of the option




20. Description of shares or debentures involved: class, number




21. Exercise price (if fixed at time of grant) or indication that price is to be
fixed at time of exercise




22. Total number of shares or debentures over which options held following this
notification




23. Any additional information




24. Name of contact and telephone number for queries

MR J S ELLMAN-BROWN - 020 7818 6816



25. Name and signature of authorised company official responsible for making
this notification

MR J S ELLMAN-BROWN, FOR AND ON BEHALF OF HENDERSON SECRETARIAL SERVICES 
LIMITED, SECRETARY



Date of Notification
3 AUGUST 2005



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