12 [54] S. M. Keigher, Housing Risks and Homelessness among the Urban Elderly, Haworth Press, New York, NY, USA, 1991. [55] R. A. Walks and R. Maaranen, The Timing, Patterning, & Forms of Gentriﬁcation & Neighbourhood Upgrading in Montreal, Toronto & Vancouver, 1961 to 2001, Centre for Urban and Community Studies, Cities Centre, University of Toronto, Totonto, Canada, 2008. [56] D. M. Hummon, “Community attachment,” in Place Attach- ment, I. Altman and S. M. Low, Eds., pp. 253–278, Plenum Press, New York, NY, USA, 1992. Journal of Aging Research