Cassin was born in 1909 in the village of San Vito al Tagliamento, then in the Austro-Hungarian Empire, but now part of Italy, 80km northwest of Trieste. When only three, his father emigrated to Canada where he died within a short time. Cassin left school at the age of 12 to work for a blacksmith; aged 17 he moved to Lecco where he took a job at the steel factory. Although he was interested in boxing for a while, he turned to climbing in his early 20s, and by 1935 had made the first ascent of Piccolissima of the Tre Cime di Lavaredo in the Dolomites. He started climbing on the granite of the Western Alps in 1937, and the following year made one of his most celebrated ascents, Walker Spur on the north face of the Grandes Jorasses in the Mont Blanc massif. He became one of the leading mountaineers of the inter-war period, making a total of 2,500 ascents, of which over 100 were first ascents. In 1940, he married Irma with whom he had three sons.
During the war, Cassin fought with the partisans against the German occupiers, being decorated for his actions in the partisan campaign during the years 1943-45. From 1947 or so, he started designing and producing mountaineering equipment, pitons, ice aces, caribiners and harnesses. In 1954, Cassin felt slighted by Ardito Desio, the chief expedition leader for the Italian Alpine Club, who left him out of the Italian expedition that made the first ascent of K2 in 1954; thereafter, he concentrated on organising and leading expeditions himself. In 1961, he planned the expedition that made the first ascent of (what is now known as) Cassin Ridge on Mount McKinley in Alaska, an achievement that earned him a telegram of congratulation from President Kennedy. In 1967, Cassin’s production firm became a limited company, and, in 1997, the Cassin brand was bought by CAMP, one of the world’s leading manufacturers of equipment for climbing and associated activities. Cassin lived to be 100 years old, dying a few months later on 6 August 2009.
The Guardian obituary has this assessment: ‘Tough, warm and good-humoured, Cassin had an obstinate, down-to-earth approach to the practicalities of climbing, underpinned by shrewd intelligence and an artist’s eye for the most beautiful routes up the most difficult peaks. Cassin’s legacy is a series of new climbs completed around the world before and after the second world war, climbs that still dominate the sport's consciousness as immutable landmarks.’ Further biographical information can also be found at Wikipedia, Summit Post, or in obituaries at The Independent and The New York Times.
Cassin kept a diary of the Mount McKinley expedition in 1961, and filled it in with some notes afterward. The diary was published within a few weeks by Life magazine (25 August 1961), and this is freely available at Googlebooks. Here are a few extracts.
17 July 1961
‘The weather is bad from early morning on; the air is thick with snow and the wind threatens to carry away everything at Camp 1. To the right and to the left of us there are almost sheer walls and we remain tied together at all times. Beneath us awaits 6,000 feet of nothing.
Toward 5 p.m. the snow stops and the storm calms down a bit. We don’t lose a minute. All of us leave at once for Camp 2, carrying food and equipment. We climb on two separate ropes for three hours, three men to each rope.’
18 July 1961
‘We leave very early, carrying two tents, food and other supplies. At about 7 p.m. we finally arrive at the site selected for Camp 3. We set up the tents in the face of freezing winds.’
19 July 1961
‘It’s decided that today we'll set out for no less than the summit. Canali and I are tied together. From the spur we pass slightly leftward to the mouth of a couloir [gorge] filled with snow and ice where we are able to climb more swiftly. It is no longer snowing, but strong winds attack us from the west without respite and make every forward step a torture. Icicles bristle from the rocks on either side and cut our faces. By 10 p.m. we have finally reached the base of the rocks that stand between ourselves and the summit.
We are exhausted and numb from the cold. The temperature is down to 30-40 below zero.
Our crampons [spiked boot-attachments] and boots are frozen together into a single mass, and for the first time Canali complains that his feet are cold.
It is Zucchi now who takes the lead; he struggles desperately and nothing can stand in his way. The summit cannot be far away now. Canali does the best he can to reactivate the circulation in his feet which he knows are little by little freezing up.
The summit is close and an unconquerable will takes hold of us and aids us tremendously in our progress. Finally at 11 p.m. and almost in darkness we reach the mighty summit. Filled with emotion, we throw our arms about each other. The icy wind prevents us from opening our mouths to speak, even for a moment; but in our eyes is written anything that our lips might speak.
But we cannot wait, we must descend again directly. Alippi, I, Canali, Perego, Airoldi and Zucchi, in this order, take leave of the summit after spending barely 15 minutes atop it.
Canali is not well. I ask him what’s wrong and he fails to answer. He begins to vomit, although he has had nothing to eat for 17 hours.
Once off the rocks immediately beneath the summit, we descend the steep couloir, all roped together.
Suddenly I hear sounds of scuffling behind me. I turn about and see Canali falling down the couloir. In an instant I plunge my ice ax into the hard snow, whip the rope once quickly around it and rapidly bring Canali to a halt. I begin to wonder whether he can proceed much further. For safety’s sake I change our order on the rope. I remain last with Canali close to me so as to keep a better eye on him. Several times during the descent of this very steep couloir, I must take pains to prevent him from slipping.
We reach the base of the couloir and begin the traverse to Camp 3. I try to give Canali a couple of vitamin tablets but he refuses them and continues to complain of the terrible cold in his feet.
The wind continues to harangue us without respite and the snow begins to fall again. But we keep on descending as the storm becomes more and more violent.’
20 July 1961
‘Finally reach Camp 3 at 6 a.m., almost totally exhausted. While the others prepare something to eat. I massage Canali’s feet. The pains begin to lessen. Outside the tent there is nothing but snow and icy wind, and so it remains for the entire day. We stay in the tent for just so long and then decide to continue our descent. To remain much longer at this height would be extremely dangerous, especially for Canali. Yet, as we attempt to go a few paces beyond the tent, we are soon driven back, convinced that to descend under such conditions is tantamount to suicide.’
21 July 1961
‘Until 11 a.m. the weather continues to be unspeakable, but then calms down a bit and we set out. But though the wind is no longer tormenting us, the snow begins to fall more and more thickly.
Canali can no longer get into his shoes. There is now no alternative for Canali but to change to a pair of boots lined with reindeer fur; but it is impossible to attach crampons to such boots. They are too soft and the toe folds up, rendering the crampons useless.
Both for Canali and for his companions on the same rope, it is extremely difficult to go on in this manner. Yet there is no other way. Canali’s own efforts at this point are superhuman and heroic, and even Zucchi and myself seem to exceed our own capacity in assisting him.
In this way we finally reach the glacier halfway down the wall.
Alippi, who has given his reindeerskin boots to Canali, is now shod in four pairs of woolen socks, and he too, unable to use crampons, must submit to a continuous martyrdom.
At one point I was standing close to Perego in an effort to ease Alippi down a slope when suddenly the latter slipped and all but dragged the three of us down the wall. Fortunately he fell onto a stretch of soft snow.
We reach Camp 2. Perego, Alippi and Airoldi prefer to bivouac there. But Canali's condition has me greatly worried. Visibility is still zero and, to make matters worse, all of our tracks upward are now concealed by fresh snow.
At this point the spur is extremely narrow and steep, and on both sides the slope falls off perpendicularly. We are forced to grope for foot and handholds under the snow. Fortunately these suffice. The effort is killing. At long last we arrive at Camp 1, completely done in. We know that Base Camp means salvation, yet Canali’s condition is such that we cannot proceed a step further at the moment.
Yet even here our difficulties are not over. None of the provisions left at this camp can be eaten without being heated first, and our stoves no longer function. After a great while we succeed in melting a liter of snow, but nothing else.
I set to work massaging Canali’s feet. The drugs that I’ve given him begin to work. Zucchi and I are despondent at being unable to do more for him. At Base Camp we have everything, but we are too exhausted to get there. We attempt to sleep, but Canali moans throughout the night and we remain awake.’