During this significant constitutional reform, Abu Bakar and his fellow members, drawn from various esteemed positions, played a crucial role in representing grassroots perspectives.

Sultan Omar Ali Saifuddien III recognised his contributions and character in the Syair Perlembagaan Negeri Brunei, describing him as a small but charismatic figure, admired for his courage and eloquence.

[6] On 23 September 1958, ahead of the sultan's birthday celebration, a gathering of 34 individuals in Tutong—including penghulus, titled men, village heads, and officials—selected representatives for the ceremony at the Lapau to deliver congratulatory speeches and appointed members of the organising committee.

[8] In another notable event on 14 October 1959, Abu Bakar joined a delegation of 21 representatives from Tutong District, comprising penghulus, village heads, and imams, to visit Istana Darul Hana.

[11] Haji Adnan served as president of the Brunei Students' Association in the United Kingdom[12] and later became the manager of Syarikat PHA Bakar bin Jambol Petrol Station.

[16] On behalf of Sultan Omar Ali Saifuddien III, Pengiran Anak Safar traveled to Kampong Suran, Tutong, on 12 October 1960, to formally confer the title of Yang Mulia Penyurat on Abu Bakar, in recognition of his achievements and status.