My dear ————,
I am deeply indebted to you for your remembrance to my ————. She wants me to write and thank you for the beautiful flowers which you so kindly sent to her. She is much improved to-day. Please accept our warmest thanks.
Sincerely,
(For Birthday Gift)
My dear ————,
How fine it was of you to remember me on my birthday. Your gift will be to me a constant reminder of your kindness.
As ever,
My dear ————,
Please accept my warmest thanks for your kind thought of me on my birthday. Your gift has proven a source of great pleasure.
Cordially yours,