25. ‘26 File 626 Qatar and Bahrain affairs: action of Shaikh Jasim ibn Muhammad Al Thani against al-`Udaid’ Date: 1881/1886 Language: English Geographic region: Al-HasaQatarAbu DhabiEl Katiff
26. 'File H/14 Vol I Turkish Customs on Mainland' Date: 1911/1912 Language: English Geographic region: Al-QatifAl-ʻUqayr
27. Political No. 2 of 1874, Forwarding a Copy of a Letter from the Political Agent in Turkish Arabia Regarding Aid to be Lent by the Commander of the Force at Nejd to British Officers Engaged in the Survey of the Kateef Coast Date: 1874/1874 Language: English Geographic region: Kateef
28. Vol 166: 1850 Squadron, Persian Gulf Date: 1850/1850 Language: English Geographic region: AboothabeeKateefDebai
30. Persian Gulf Affairs Date: 1840/1840 Language: English Geographic region: خارج (جزيرة)بلاد فارسالخليج العربيالبحرينقشمالقطيفالأحساءمسقط
31. Bagdad and Persian Gulf Affairs Date: 1840/1840 Language: English Geographic region: Euphrates RiverBuraimiMuscatAl-Qatif
32. Coll 30/31 'Hasa Coast; Entry of Hindu Merchants into Hasa; Attitude of Ibn Saud' Date: 1928/1934 Language: English Geographic region: QatifHasa
33. File 3208/1908 Pt 4 ‘Persian Gulf: acts of piracy by Ahmed bin Selman near Katif [Turkish discourtesy to commander of HMS “Lapwing” at Katif]’ Date: 1901/1908 Language: English Geographic region: Al-QatifBahreinQatarDoha
34. File 395/1908 'Persian Gulf: Katif Affairs' Date: 1904/1910 Language: English Geographic region: Katif
35. File 952/1906 'Persian Gulf: murder of Bahrainese near Katif' Date: 1901/1906 Language: English Geographic region: Katif