6.1. For the purposes of the second paragraph of each of sections 2 and 5, and of sections 10, 14, 15 and 16, every person or partnership or other group of persons who or which, from 1 October 1971 but before 1 November 1975, leased an economic farm to establish himself or itself thereon is considered to have leased that farm on l November 1975. If, on the date the Bureau receives the application of such lessee for a grant, such lessee is a farmer or an aspiring farmer, he is deemed to be of the same age on the said date of receipt as on the actual date of that lease, and if that lessee is a legal person, a partnership or a group of persons eligible for benefits under this Act, the farm operator contemplated in section 10, 14 or 16 or, as the case may be, the farmer contemplated in section 15 or 16 is deemed to be of the same age on the said date of receipt as he was at the time of that lease.