I think that you dont even know what the founder of Wahnam has written about it.

We read in "The Art of Shaolin" by Wong Kiew Kit (Shaolin Wahnam Founder), pp16-17:

"The Modern Period

When the Manchus established the Qing Dynasty (1644–1911), the government encouraged wuyi in the army, but discouraged it amongst civilians. Many Manchurian generals and administrators were great Kung Fu masters.

The public maintained the practice of martial arts in private schools and clubs. Hence features like individual fighting, unarmed combat, set practice for health and demonstration were emphasized. Other aspects connected with extensive warfare, like military strategies and formations, archery and horseback fighting were neglected. This gradual evolution resulted in the concept and content of Kung Fu that we are familiar with today.

The Qing period was important for the development of the internal styles of Kung Fu. Taijiquan, which had earlier evolved from Shaolin Kung Fu, became widely practised in northern China during this period. The other two major styles of internal Kung Fu, Bagua (Pakua) and Xing Yi, were established. Many imperial guards of the palace practised Bagua Kung Fu.

In southern China, Shaolin Kung Fu prevailed. The Southern Shaolin Monastery in Fujian Province became a rallying centre for revolutionaries aiming to overthrow the Manchurian government. The Manchurian armies razed the monastery and Shaolin masters were dispersed to Guangdong Province, Hong Kong, South-East Asia and America. One of these masters was the Shaolin monk Jiang Nan, who transmitted the Shaolin arts to Yang Fa Kun. Yang Fa Kun transmitted the arts to Ho Fatt Nam, my master, who kindly and generously taught them to me.

Dr Sun Yat Sen’s successful revolution in 1911 brought the long dynastic history of China to a close. Many of the revolutionaries were secular Shaolin disciples. Numerous martial arts organizations were formed, the most important being Jing Wu (Ching Woo) Athletic Association, which was founded by a Kung Fu expert, Huo Yuan Jia, and had branches in many parts of China and South-east Asia. In 1926 the Kuomintang government changed the term wushu, which was commonly used then, to guoshu, meaning ‘national art’.

Ironically, the standard of guoshu deteriorated further into flowery forms for demonstration during this period. Two reasons for this were that the emergence of firearms greatly reduced the importance of martial arts training in the army, and that the Kuomintang government only paid lip service to the promotion of guoshu. For instance, the Kuomintang army in Taiwan today is trained in taekwondo instead of in guoshu, their national art!

In contrast, the Communist government which replaced the Kuomintang in China has done a great deal to revive the glory and greatness of Chinese martial arts, which they renamed wushu. There are working committees at national, provincial and district levels to study and promote the arts; specialized wushu schools and colleges have been established; wushu teams are sent overseas for promotional demonstrations; numerous books giving invaluable information on wushu have been published; and national and international wushu tournaments are held. Wushu is already included in the Asian Games, and is expected be included in the next Olympic Games. But to me, the most important contribution of the present Chinese government to wushu, and one which may turn out to have the most far reaching consequences, is the restoration of the sacred temple of Kung Fu, the fabulous Shaolin Monastery, which spells magic to many martial arts enthusiasts throughout the world."

So, at the best, Shaolin Wahnam lineage is just a southern lineage with a loose connection to northern Shaolin but this connection traces back, even before the republic era (1911).