Your welcome, just sorry i can't find anything more on the man & his service for you.
Did spot his family on the 1911 census. 1911 at 23 St Lawrence Rd, Upminster, Essex Frederick Halestrap 40 Head of the household - House painter Amelia Mary Halestrap 41 Wife Frederick Halestrap 7 Son Hilda Halestrap 5 Daughter
I did find his parents gave with his name inscribed on
His fathers probate record. Click on the image to see a larger version.